./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:09:23,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:09:23,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:09:23,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:09:23,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:09:23,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:09:23,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:09:23,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:09:23,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:09:23,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:09:23,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:09:23,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:09:23,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:09:23,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:09:23,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:09:23,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:09:23,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:09:23,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:09:23,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:09:23,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:09:23,630 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:09:23,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:09:23,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:09:23,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:09:23,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:09:23,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:09:23,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:09:23,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:09:23,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:09:23,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:09:23,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:09:23,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:09:23,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:09:23,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:09:23,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:09:23,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:09:23,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:09:23,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:09:23,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:09:23,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:09:23,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:09:23,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:09:23,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:09:23,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:09:23,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:09:23,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:09:23,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:09:23,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:09:23,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:09:23,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:09:23,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:09:23,688 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:09:23,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:09:23,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:09:23,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:09:23,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:09:23,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:09:23,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:09:23,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:09:23,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:09:23,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:09:23,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:09:23,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:09:23,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:09:23,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:09:23,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:09:23,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:09:23,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:09:23,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:09:23,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:09:23,692 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:09:23,692 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:09:23,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:09:23,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-23 00:09:23,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:09:23,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:09:23,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:09:23,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:09:23,928 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:09:23,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-23 00:09:23,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ffd9985c/7f5be342e16d4357afefc9f45edb1ed3/FLAG73803dd35 [2022-07-23 00:09:24,721 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:09:24,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-23 00:09:24,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ffd9985c/7f5be342e16d4357afefc9f45edb1ed3/FLAG73803dd35 [2022-07-23 00:09:25,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ffd9985c/7f5be342e16d4357afefc9f45edb1ed3 [2022-07-23 00:09:25,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:09:25,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:09:25,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:09:25,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:09:25,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:09:25,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:25" (1/1) ... [2022-07-23 00:09:25,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecf2498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:25, skipping insertion in model container [2022-07-23 00:09:25,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:25" (1/1) ... [2022-07-23 00:09:25,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:09:25,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:09:25,553 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-23 00:09:25,554 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-23 00:09:25,785 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-23 00:09:26,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:26,849 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:09:26,954 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-23 00:09:26,955 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-23 00:09:26,969 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-23 00:09:27,185 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: ite8872_lpt = ite8872_lpt & 65280U [7432] 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:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 00:09:27,191 INFO L158 Benchmark]: Toolchain (without parser) took 2167.87ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 58.3MB in the beginning and 126.7MB in the end (delta: -68.4MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2022-07-23 00:09:27,192 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:09:27,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2163.27ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 58.0MB in the beginning and 126.7MB in the end (delta: -68.7MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2022-07-23 00:09:27,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2163.27ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 58.0MB in the beginning and 126.7MB in the end (delta: -68.7MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432]: 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:09:28,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:09:28,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:09:28,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:09:28,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:09:28,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:09:28,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:09:28,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:09:28,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:09:28,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:09:28,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:09:28,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:09:28,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:09:28,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:09:28,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:09:28,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:09:28,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:09:28,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:09:28,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:09:28,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:09:28,989 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:09:28,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:09:28,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:09:28,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:09:28,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:09:29,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:09:29,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:09:29,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:09:29,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:09:29,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:09:29,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:09:29,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:09:29,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:09:29,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:09:29,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:09:29,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:09:29,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:09:29,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:09:29,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:09:29,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:09:29,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:09:29,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:09:29,016 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:09:29,046 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:09:29,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:09:29,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:09:29,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:09:29,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:09:29,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:09:29,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:09:29,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:09:29,049 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:09:29,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:09:29,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:09:29,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:09:29,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:09:29,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:09:29,050 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:09:29,051 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:09:29,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:09:29,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:09:29,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:09:29,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:09:29,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:09:29,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:09:29,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:09:29,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:09:29,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:09:29,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:09:29,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:09:29,053 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:09:29,053 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:09:29,053 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:09:29,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:09:29,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:09:29,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:09:29,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-23 00:09:29,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:09:29,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:09:29,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:09:29,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:09:29,404 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:09:29,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-23 00:09:29,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27bea06/a79ee6ad42744a71afde04c44681985d/FLAG10cee75fb [2022-07-23 00:09:30,205 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:09:30,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-23 00:09:30,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27bea06/a79ee6ad42744a71afde04c44681985d/FLAG10cee75fb [2022-07-23 00:09:30,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27bea06/a79ee6ad42744a71afde04c44681985d [2022-07-23 00:09:30,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:09:30,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:09:30,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:09:30,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:09:30,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:09:30,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:30" (1/1) ... [2022-07-23 00:09:30,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252a8738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:30, skipping insertion in model container [2022-07-23 00:09:30,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:30" (1/1) ... [2022-07-23 00:09:30,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:09:30,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:09:31,109 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-23 00:09:31,110 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-23 00:09:31,438 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-23 00:09:32,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:32,494 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:09:32,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:09:32,616 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-23 00:09:32,616 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-23 00:09:32,625 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-23 00:09:32,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:32,887 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:09:32,991 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-23 00:09:32,991 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-23 00:09:32,998 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-23 00:09:33,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:33,450 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:09:33,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33 WrapperNode [2022-07-23 00:09:33,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:09:33,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:09:33,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:09:33,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:09:33,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,751 INFO L137 Inliner]: procedures = 312, calls = 2885, calls flagged for inlining = 153, calls inlined = 124, statements flattened = 5584 [2022-07-23 00:09:33,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:09:33,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:09:33,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:09:33,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:09:33,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:33,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:34,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:34,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:09:34,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:09:34,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:09:34,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:09:34,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (1/1) ... [2022-07-23 00:09:34,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:09:34,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:09:34,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:09:34,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:09:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:09:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-23 00:09:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:09:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:09:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:09:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 00:09:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:09:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:09:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:09:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check [2022-07-23 00:09:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check [2022-07-23 00:09:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 00:09:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 00:09:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:09:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:09:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-23 00:09:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-23 00:09:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_forward [2022-07-23 00:09:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_forward [2022-07-23 00:09:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_disable_irq [2022-07-23 00:09:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_disable_irq [2022-07-23 00:09:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:09:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:09:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure frob_set_mode [2022-07-23 00:09:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_set_mode [2022-07-23 00:09:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_data [2022-07-23 00:09:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_data [2022-07-23 00:09:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_save_state [2022-07-23 00:09:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_save_state [2022-07-23 00:09:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:09:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:09:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_data [2022-07-23 00:09:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_data [2022-07-23 00:09:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:09:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:09:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:09:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure decode_winbond [2022-07-23 00:09:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_winbond [2022-07-23 00:09:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:09:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 00:09:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 00:09:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-23 00:09:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-23 00:09:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure parport_PS2_supported [2022-07-23 00:09:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_PS2_supported [2022-07-23 00:09:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:09:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:09:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 00:09:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_data [2022-07-23 00:09:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_data [2022-07-23 00:09:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:09:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:09:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-23 00:09:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-23 00:09:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_data [2022-07-23 00:09:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_data [2022-07-23 00:09:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:09:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_write_compat [2022-07-23 00:09:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_write_compat [2022-07-23 00:09:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:09:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:09:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 00:09:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 00:09:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:09:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure irq_probe_EPP [2022-07-23 00:09:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_probe_EPP [2022-07-23 00:09:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 00:09:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 00:09:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_addr [2022-07-23 00:09:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_addr [2022-07-23 00:09:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_unregister_port [2022-07-23 00:09:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_unregister_port [2022-07-23 00:09:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 00:09:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 00:09:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:09:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:09:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_dma [2022-07-23 00:09:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_dma [2022-07-23 00:09:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-07-23 00:09:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-07-23 00:09:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_read_data [2022-07-23 00:09:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_read_data [2022-07-23 00:09:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-07-23 00:09:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-07-23 00:09:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:09:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:09:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_addr [2022-07-23 00:09:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_addr [2022-07-23 00:09:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check2 [2022-07-23 00:09:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check2 [2022-07-23 00:09:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 00:09:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 00:09:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 00:09:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 00:09:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_pc_frob_control [2022-07-23 00:09:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_pc_frob_control [2022-07-23 00:09:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-23 00:09:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-23 00:09:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-23 00:09:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-23 00:09:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-23 00:09:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-23 00:09:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure parport_put_port [2022-07-23 00:09:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_put_port [2022-07-23 00:09:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure parport_irq_probe [2022-07-23 00:09:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_irq_probe [2022-07-23 00:09:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_control [2022-07-23 00:09:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_control [2022-07-23 00:09:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:09:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:09:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-23 00:09:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-23 00:09:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:09:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:09:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_flags [2022-07-23 00:09:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_flags [2022-07-23 00:09:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:09:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 00:09:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:09:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:09:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:09:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:09:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_frob_control [2022-07-23 00:09:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_frob_control [2022-07-23 00:09:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure frob_econtrol [2022-07-23 00:09:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_econtrol [2022-07-23 00:09:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:09:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure find_free_superio [2022-07-23 00:09:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure find_free_superio [2022-07-23 00:09:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_reverse [2022-07-23 00:09:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_reverse [2022-07-23 00:09:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:09:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure find_superio [2022-07-23 00:09:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure find_superio [2022-07-23 00:09:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 00:09:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 00:09:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:09:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 00:09:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 00:09:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:09:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 00:09:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 00:09:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 00:09:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:09:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_read_nibble [2022-07-23 00:09:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_read_nibble [2022-07-23 00:09:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_init_state [2022-07-23 00:09:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_init_state [2022-07-23 00:09:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_irq [2022-07-23 00:09:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_irq [2022-07-23 00:09:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_enable_irq [2022-07-23 00:09:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_enable_irq [2022-07-23 00:09:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_param [2022-07-23 00:09:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_param [2022-07-23 00:09:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_check [2022-07-23 00:09:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_check [2022-07-23 00:09:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-07-23 00:09:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-07-23 00:09:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_restore_state [2022-07-23 00:09:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_restore_state [2022-07-23 00:09:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_write_addr [2022-07-23 00:09:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_write_addr [2022-07-23 00:09:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure parport_EPP_supported [2022-07-23 00:09:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_EPP_supported [2022-07-23 00:09:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_status [2022-07-23 00:09:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_status [2022-07-23 00:09:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_probe_port [2022-07-23 00:09:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_probe_port [2022-07-23 00:09:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_control [2022-07-23 00:09:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_control [2022-07-23 00:09:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:09:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:09:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 00:09:34,128 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 00:09:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:09:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-23 00:09:34,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-23 00:09:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-07-23 00:09:34,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-07-23 00:09:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:09:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:09:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:09:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:09:34,922 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:09:34,924 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:09:35,057 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:10:04,879 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:10:04,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:10:04,903 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 00:10:04,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:10:04 BoogieIcfgContainer [2022-07-23 00:10:04,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:10:04,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:10:04,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:10:04,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:10:04,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:09:30" (1/3) ... [2022-07-23 00:10:04,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7565b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:10:04, skipping insertion in model container [2022-07-23 00:10:04,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:33" (2/3) ... [2022-07-23 00:10:04,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7565b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:10:04, skipping insertion in model container [2022-07-23 00:10:04,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:10:04" (3/3) ... [2022-07-23 00:10:04,915 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-23 00:10:04,927 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:10:04,928 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:10:05,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:10:05,023 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@277a60a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4331abd2 [2022-07-23 00:10:05,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:10:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) [2022-07-23 00:10:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-23 00:10:05,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:10:05,058 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:10:05,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:10:05,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:10:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1925553432, now seen corresponding path program 1 times [2022-07-23 00:10:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:10:05,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208129844] [2022-07-23 00:10:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:10:05,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:10:05,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:10:05,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:10:05,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 00:10:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:10,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:10:10,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:10:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:10:10,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:10:10,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:10:10,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208129844] [2022-07-23 00:10:10,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208129844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:10:10,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:10:10,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:10:10,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199700349] [2022-07-23 00:10:10,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:10:10,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:10:10,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:10:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:10:10,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:10:10,532 INFO L87 Difference]: Start difference. First operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:10:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:10:11,233 INFO L93 Difference]: Finished difference Result 5118 states and 7682 transitions. [2022-07-23 00:10:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:10:11,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2022-07-23 00:10:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:10:11,279 INFO L225 Difference]: With dead ends: 5118 [2022-07-23 00:10:11,279 INFO L226 Difference]: Without dead ends: 3324 [2022-07-23 00:10:11,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:10:11,318 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 2468 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:10:11,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 5481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 00:10:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2022-07-23 00:10:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3319. [2022-07-23 00:10:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 2302 states have (on average 1.368375325803649) internal successors, (3150), 2342 states have internal predecessors, (3150), 868 states have call successors, (868), 149 states have call predecessors, (868), 148 states have return successors, (867), 862 states have call predecessors, (867), 867 states have call successors, (867) [2022-07-23 00:10:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4885 transitions. [2022-07-23 00:10:11,635 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4885 transitions. Word has length 100 [2022-07-23 00:10:11,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:10:11,638 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4885 transitions. [2022-07-23 00:10:11,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:10:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4885 transitions. [2022-07-23 00:10:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-23 00:10:11,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:10:11,646 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:10:11,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:10:11,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:10:11,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:10:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:10:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash 900359696, now seen corresponding path program 1 times [2022-07-23 00:10:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:10:11,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522875739] [2022-07-23 00:10:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:10:11,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:10:11,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:10:11,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:10:11,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 00:10:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 4704 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-23 00:10:17,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:10:17,496 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:17,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:17,673 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:17,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:17,839 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:17,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,008 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,159 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,314 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,464 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,618 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,767 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:18,914 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:18,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:19,043 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:19,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:19,165 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:19,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:19,296 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:19,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:19,420 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:19,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:10:20,085 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:10:20,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-23 00:10:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:10:20,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:10:20,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:10:20,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522875739] [2022-07-23 00:10:20,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522875739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:10:20,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:10:20,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:10:20,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292350421] [2022-07-23 00:10:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:10:20,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:10:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:10:20,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:10:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:10:20,128 INFO L87 Difference]: Start difference. First operand 3319 states and 4885 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:10:26,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:36,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:38,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:41,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:44,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:46,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:48,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:51,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:53,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:57,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:00,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:02,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:05,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:07,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:09,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:11,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:11:16,564 INFO L93 Difference]: Finished difference Result 8365 states and 12442 transitions. [2022-07-23 00:11:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:11:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2022-07-23 00:11:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:11:16,622 INFO L225 Difference]: With dead ends: 8365 [2022-07-23 00:11:16,623 INFO L226 Difference]: Without dead ends: 5077 [2022-07-23 00:11:16,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:11:16,647 INFO L413 NwaCegarLoop]: 2531 mSDtfsCounter, 1483 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 889 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 7377 SdHoareTripleChecker+Invalid, 3800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:11:16,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 7377 Invalid, 3800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [889 Valid, 2900 Invalid, 11 Unknown, 0 Unchecked, 55.6s Time] [2022-07-23 00:11:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2022-07-23 00:11:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4929. [2022-07-23 00:11:16,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4929 states, 3395 states have (on average 1.3820324005891016) internal successors, (4692), 3515 states have internal predecessors, (4692), 1283 states have call successors, (1283), 253 states have call predecessors, (1283), 250 states have return successors, (1380), 1220 states have call predecessors, (1380), 1282 states have call successors, (1380) [2022-07-23 00:11:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4929 states to 4929 states and 7355 transitions. [2022-07-23 00:11:16,973 INFO L78 Accepts]: Start accepts. Automaton has 4929 states and 7355 transitions. Word has length 121 [2022-07-23 00:11:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:11:16,974 INFO L495 AbstractCegarLoop]: Abstraction has 4929 states and 7355 transitions. [2022-07-23 00:11:16,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:11:16,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4929 states and 7355 transitions. [2022-07-23 00:11:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-23 00:11:16,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:11:16,984 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:11:17,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-23 00:11:17,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:11:17,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:11:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:11:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash -808022057, now seen corresponding path program 1 times [2022-07-23 00:11:17,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:11:17,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207468735] [2022-07-23 00:11:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:11:17,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:11:17,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:11:17,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:11:17,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 00:11:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:22,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-23 00:11:22,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:11:22,543 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:22,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:22,682 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:22,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:22,791 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:22,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:22,898 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:22,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,010 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,145 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,257 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,366 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,467 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,571 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,708 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,820 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:23,938 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:23,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:24,047 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:24,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-23 00:11:25,120 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 00:11:25,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-23 00:11:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:11:25,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:11:25,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:11:25,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207468735] [2022-07-23 00:11:25,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207468735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:11:25,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:11:25,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:11:25,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300958934] [2022-07-23 00:11:25,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:11:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:11:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:11:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:11:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:11:25,165 INFO L87 Difference]: Start difference. First operand 4929 states and 7355 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:11:32,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:41,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:43,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:45,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:47,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:51,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:56,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:58,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:03,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:11,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:16,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:18,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:21,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:12:26,767 INFO L93 Difference]: Finished difference Result 9961 states and 14886 transitions. [2022-07-23 00:12:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:12:26,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2022-07-23 00:12:26,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:12:26,841 INFO L225 Difference]: With dead ends: 9961 [2022-07-23 00:12:26,847 INFO L226 Difference]: Without dead ends: 5063 [2022-07-23 00:12:26,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:12:26,911 INFO L413 NwaCegarLoop]: 2770 mSDtfsCounter, 1373 mSDsluCounter, 5134 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 827 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 7904 SdHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:12:26,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 7904 Invalid, 3751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [827 Valid, 2912 Invalid, 12 Unknown, 0 Unchecked, 60.9s Time] [2022-07-23 00:12:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2022-07-23 00:12:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 4915. [2022-07-23 00:12:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 3383 states have (on average 1.3810227608631391) internal successors, (4672), 3503 states have internal predecessors, (4672), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 250 states have return successors, (1376), 1218 states have call predecessors, (1376), 1280 states have call successors, (1376) [2022-07-23 00:12:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7329 transitions. [2022-07-23 00:12:27,433 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7329 transitions. Word has length 124 [2022-07-23 00:12:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:12:27,434 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 7329 transitions. [2022-07-23 00:12:27,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-23 00:12:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7329 transitions. [2022-07-23 00:12:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-23 00:12:27,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:12:27,439 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:12:27,654 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-07-23 00:12:27,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 137 [2022-07-23 00:12:27,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:12:27,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:12:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:12:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1045851496, now seen corresponding path program 1 times [2022-07-23 00:12:27,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:12:27,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547287993] [2022-07-23 00:12:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:12:27,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:12:27,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:12:27,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:12:27,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 00:12:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:35,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 4785 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:12:35,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:12:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:12:35,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:12:35,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:12:35,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547287993] [2022-07-23 00:12:35,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547287993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:12:35,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:12:35,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:12:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450559292] [2022-07-23 00:12:35,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:12:35,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:12:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:12:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:12:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:12:35,411 INFO L87 Difference]: Start difference. First operand 4915 states and 7329 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:12:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:12:36,318 INFO L93 Difference]: Finished difference Result 10968 states and 16540 transitions. [2022-07-23 00:12:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 00:12:36,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2022-07-23 00:12:36,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:12:36,367 INFO L225 Difference]: With dead ends: 10968 [2022-07-23 00:12:36,368 INFO L226 Difference]: Without dead ends: 6084 [2022-07-23 00:12:36,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:12:36,417 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 648 mSDsluCounter, 15946 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 19277 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:12:36,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 19277 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:12:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2022-07-23 00:12:36,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 4939. [2022-07-23 00:12:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3399 states have (on average 1.3792291850544278) internal successors, (4688), 3521 states have internal predecessors, (4688), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1224 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-23 00:12:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7361 transitions. [2022-07-23 00:12:37,041 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7361 transitions. Word has length 134 [2022-07-23 00:12:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:12:37,043 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 7361 transitions. [2022-07-23 00:12:37,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:12:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7361 transitions. [2022-07-23 00:12:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-23 00:12:37,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:12:37,050 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:12:37,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:12:37,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:12:37,275 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:12:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:12:37,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1068877759, now seen corresponding path program 1 times [2022-07-23 00:12:37,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:12:37,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531013791] [2022-07-23 00:12:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:12:37,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:12:37,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:12:37,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:12:37,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 00:12:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:44,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:12:44,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:12:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:12:44,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:12:44,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:12:44,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531013791] [2022-07-23 00:12:44,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531013791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:12:44,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:12:44,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:12:44,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226210735] [2022-07-23 00:12:44,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:12:44,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:12:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:12:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:12:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:12:44,924 INFO L87 Difference]: Start difference. First operand 4939 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:12:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:12:45,487 INFO L93 Difference]: Finished difference Result 11744 states and 17845 transitions. [2022-07-23 00:12:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:12:45,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-23 00:12:45,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:12:45,550 INFO L225 Difference]: With dead ends: 11744 [2022-07-23 00:12:45,550 INFO L226 Difference]: Without dead ends: 6836 [2022-07-23 00:12:45,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:12:45,583 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 632 mSDsluCounter, 16392 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 19830 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:12:45,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 19830 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:12:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2022-07-23 00:12:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 4947. [2022-07-23 00:12:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 3407 states have (on average 1.3783387144115058) internal successors, (4696), 3525 states have internal predecessors, (4696), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1228 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-23 00:12:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 7369 transitions. [2022-07-23 00:12:45,900 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 7369 transitions. Word has length 138 [2022-07-23 00:12:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:12:45,901 INFO L495 AbstractCegarLoop]: Abstraction has 4947 states and 7369 transitions. [2022-07-23 00:12:45,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:12:45,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 7369 transitions. [2022-07-23 00:12:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-23 00:12:45,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:12:45,905 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:12:46,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:12:46,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:12:46,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:12:46,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:12:46,120 INFO L85 PathProgramCache]: Analyzing trace with hash 416898790, now seen corresponding path program 1 times [2022-07-23 00:12:46,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:12:46,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231745524] [2022-07-23 00:12:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:12:46,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:12:46,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:12:46,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:12:46,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 00:12:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:51,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 00:12:51,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:12:52,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-07-23 00:12:52,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-07-23 00:12:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:12:52,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:12:52,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:12:52,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231745524] [2022-07-23 00:12:52,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231745524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:12:52,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:12:52,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:12:52,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075596453] [2022-07-23 00:12:52,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:12:52,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:12:52,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:12:52,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:12:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:12:52,414 INFO L87 Difference]: Start difference. First operand 4947 states and 7369 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 00:12:56,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:58,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:01,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:03,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:05,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:08,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:12,332 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 [] [2022-07-23 00:13:13,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:13:13,085 INFO L93 Difference]: Finished difference Result 9859 states and 14689 transitions. [2022-07-23 00:13:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 00:13:13,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2022-07-23 00:13:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:13:13,139 INFO L225 Difference]: With dead ends: 9859 [2022-07-23 00:13:13,139 INFO L226 Difference]: Without dead ends: 4943 [2022-07-23 00:13:13,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:13:13,162 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 21 mSDsluCounter, 14813 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17309 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:13:13,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 17309 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 7 Unknown, 0 Unchecked, 20.3s Time] [2022-07-23 00:13:13,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-07-23 00:13:13,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2022-07-23 00:13:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 3403 states have (on average 1.3787834263884808) internal successors, (4692), 3523 states have internal predecessors, (4692), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1388), 1226 states have call predecessors, (1388), 1280 states have call successors, (1388) [2022-07-23 00:13:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7361 transitions. [2022-07-23 00:13:13,424 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7361 transitions. Word has length 139 [2022-07-23 00:13:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:13:13,425 INFO L495 AbstractCegarLoop]: Abstraction has 4943 states and 7361 transitions. [2022-07-23 00:13:13,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 00:13:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7361 transitions. [2022-07-23 00:13:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-23 00:13:13,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:13,429 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:13,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 00:13:13,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:13:13,651 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1098571227, now seen corresponding path program 1 times [2022-07-23 00:13:13,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:13:13,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530612291] [2022-07-23 00:13:13,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:13,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:13:13,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:13:13,660 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:13:13,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 00:13:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:20,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:13:20,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:13:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:13:20,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:13:20,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:13:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530612291] [2022-07-23 00:13:20,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530612291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:20,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:20,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:13:20,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219362773] [2022-07-23 00:13:20,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:20,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:13:20,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:13:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:13:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:13:20,306 INFO L87 Difference]: Start difference. First operand 4943 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:13:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:13:20,680 INFO L93 Difference]: Finished difference Result 11724 states and 17791 transitions. [2022-07-23 00:13:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:13:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-23 00:13:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:13:20,722 INFO L225 Difference]: With dead ends: 11724 [2022-07-23 00:13:20,723 INFO L226 Difference]: Without dead ends: 6812 [2022-07-23 00:13:20,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:13:20,750 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 618 mSDsluCounter, 16172 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 19559 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:13:20,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 19559 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:13:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-07-23 00:13:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 4963. [2022-07-23 00:13:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 3419 states have (on average 1.377010821877742) internal successors, (4708), 3535 states have internal predecessors, (4708), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 262 states have return successors, (1394), 1234 states have call predecessors, (1394), 1280 states have call successors, (1394) [2022-07-23 00:13:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 7383 transitions. [2022-07-23 00:13:21,112 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 7383 transitions. Word has length 138 [2022-07-23 00:13:21,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:13:21,112 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 7383 transitions. [2022-07-23 00:13:21,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-23 00:13:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 7383 transitions. [2022-07-23 00:13:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-23 00:13:21,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:21,118 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:21,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-23 00:13:21,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:13:21,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:21,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:21,332 INFO L85 PathProgramCache]: Analyzing trace with hash -76090973, now seen corresponding path program 1 times [2022-07-23 00:13:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:13:21,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606751420] [2022-07-23 00:13:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:21,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:13:21,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:13:21,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:13:21,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 00:13:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:26,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 00:13:26,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:13:26,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-07-23 00:13:26,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-07-23 00:13:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:13:27,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:13:27,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:13:27,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606751420] [2022-07-23 00:13:27,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606751420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:27,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:27,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:13:27,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069924702] [2022-07-23 00:13:27,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:27,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:13:27,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:13:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:13:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:13:27,163 INFO L87 Difference]: Start difference. First operand 4963 states and 7383 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 00:13:30,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:33,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:35,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:37,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []