./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:14:46,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:14:46,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:14:46,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:14:46,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:14:46,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:14:46,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:14:46,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:14:46,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:14:46,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:14:46,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:14:46,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:14:46,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:14:46,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:14:46,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:14:46,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:14:46,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:14:46,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:14:46,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:14:46,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:14:46,306 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:14:46,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:14:46,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:14:46,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:14:46,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:14:46,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:14:46,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:14:46,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:14:46,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:14:46,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:14:46,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:14:46,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:14:46,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:14:46,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:14:46,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:14:46,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:14:46,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:14:46,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:14:46,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:14:46,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:14:46,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:14:46,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:14:46,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:14:46,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:14:46,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:14:46,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:14:46,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:14:46,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:14:46,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:14:46,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:14:46,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:14:46,350 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:14:46,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:14:46,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:14:46,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:14:46,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:14:46,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:14:46,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:14:46,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:14:46,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:14:46,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:14:46,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:14:46,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:14:46,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:14:46,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:14:46,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:14:46,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:14:46,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:14:46,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2022-07-12 14:14:46,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:14:46,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:14:46,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:14:46,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:14:46,579 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:14:46,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-07-12 14:14:46,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ea26cf4/f6abf1903bfc4e288e534a0fd97d5161/FLAG5df52ced0 [2022-07-12 14:14:47,344 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:14:47,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-07-12 14:14:47,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ea26cf4/f6abf1903bfc4e288e534a0fd97d5161/FLAG5df52ced0 [2022-07-12 14:14:47,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ea26cf4/f6abf1903bfc4e288e534a0fd97d5161 [2022-07-12 14:14:47,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:14:47,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:14:47,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:14:47,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:14:47,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:14:47,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:14:47" (1/1) ... [2022-07-12 14:14:47,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33eef61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:47, skipping insertion in model container [2022-07-12 14:14:47,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:14:47" (1/1) ... [2022-07-12 14:14:47,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:14:47,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:14:50,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2022-07-12 14:14:50,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:14:50,688 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:14:50,958 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: eecd_reg = eecd_reg & 4294967283U [13101] 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) [2022-07-12 14:14:50,966 INFO L158 Benchmark]: Toolchain (without parser) took 3306.88ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 80.8MB in the beginning and 155.2MB in the end (delta: -74.4MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2022-07-12 14:14:50,966 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:14:50,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3305.53ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 80.8MB in the beginning and 155.2MB in the end (delta: -74.4MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2022-07-12 14:14:50,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3305.53ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 80.8MB in the beginning and 155.2MB in the end (delta: -74.4MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: eecd_reg = eecd_reg & 4294967283U [13101] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: eecd_reg = eecd_reg & 4294967283U [13101]: 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:14:52,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:14:52,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:14:52,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:14:52,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:14:52,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:14:52,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:14:52,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:14:52,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:14:52,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:14:52,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:14:52,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:14:52,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:14:52,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:14:52,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:14:52,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:14:52,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:14:52,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:14:52,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:14:52,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:14:52,541 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:14:52,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:14:52,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:14:52,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:14:52,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:14:52,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:14:52,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:14:52,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:14:52,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:14:52,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:14:52,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:14:52,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:14:52,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:14:52,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:14:52,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:14:52,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:14:52,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:14:52,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:14:52,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:14:52,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:14:52,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:14:52,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:14:52,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:14:52,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:14:52,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:14:52,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:14:52,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:14:52,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:14:52,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:14:52,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:14:52,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:14:52,580 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:14:52,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:14:52,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:14:52,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:14:52,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:14:52,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:14:52,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:14:52,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:14:52,582 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:14:52,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:14:52,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:14:52,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:14:52,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:14:52,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:14:52,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:14:52,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:14:52,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:14:52,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:14:52,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:14:52,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:14:52,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2022-07-12 14:14:52,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:14:52,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:14:52,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:14:52,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:14:52,864 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:14:52,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-07-12 14:14:52,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d00401/31aed6a6ca17494d9773f42d005c0355/FLAG61c6167a9 [2022-07-12 14:14:53,652 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:14:53,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-07-12 14:14:53,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d00401/31aed6a6ca17494d9773f42d005c0355/FLAG61c6167a9 [2022-07-12 14:14:54,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d00401/31aed6a6ca17494d9773f42d005c0355 [2022-07-12 14:14:54,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:14:54,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:14:54,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:14:54,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:14:54,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:14:54,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:14:54" (1/1) ... [2022-07-12 14:14:54,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b5c947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:54, skipping insertion in model container [2022-07-12 14:14:54,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:14:54" (1/1) ... [2022-07-12 14:14:54,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:14:54,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:14:57,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2022-07-12 14:14:57,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:14:57,566 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:14:57,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:14:57,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2022-07-12 14:14:57,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:14:57,975 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:14:58,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2022-07-12 14:14:58,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:14:58,608 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:14:58,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58 WrapperNode [2022-07-12 14:14:58,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:14:58,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:14:58,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:14:58,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:14:58,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:58,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:58,993 INFO L137 Inliner]: procedures = 464, calls = 6036, calls flagged for inlining = 203, calls inlined = 184, statements flattened = 11044 [2022-07-12 14:14:58,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:14:58,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:14:58,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:14:58,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:14:59,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:14:59,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:14:59,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:14:59,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:14:59,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (1/1) ... [2022-07-12 14:14:59,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:14:59,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:14:59,287 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) [2022-07-12 14:14:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 14:14:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 14:14:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:14:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:14:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 14:14:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 14:14:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-07-12 14:14:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-07-12 14:14:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:14:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:14:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-07-12 14:14:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-07-12 14:14:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_error_detected [2022-07-12 14:14:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_error_detected [2022-07-12 14:14:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 14:14:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 14:14:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-07-12 14:14:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-07-12 14:14:59,303 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 [2022-07-12 14:14:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:14:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:14:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 14:14:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 14:14:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 14:14:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 14:14:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout_task [2022-07-12 14:14:59,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout_task [2022-07-12 14:14:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-07-12 14:14:59,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-07-12 14:14:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-07-12 14:14:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-07-12 14:14:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-07-12 14:14:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-07-12 14:14:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-07-12 14:14:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-07-12 14:14:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 14:14:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 14:14:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_features [2022-07-12 14:14:59,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_features [2022-07-12 14:14:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-07-12 14:14:59,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-07-12 14:14:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-07-12 14:14:59,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-07-12 14:14:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 14:14:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 14:14:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 14:14:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 14:14:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 14:14:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 14:14:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 14:14:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 14:14:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:14:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 14:14:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 14:14:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:14:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:14:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:14:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-07-12 14:14:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-07-12 14:14:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 14:14:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 14:14:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-07-12 14:14:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-07-12 14:14:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:14:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:14:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-07-12 14:14:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-07-12 14:14:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-07-12 14:14:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-07-12 14:14:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:14:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:14:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-07-12 14:14:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-07-12 14:14:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-07-12 14:14:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-07-12 14:14:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-07-12 14:14:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-07-12 14:14:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-07-12 14:14:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-07-12 14:14:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 14:14:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 14:14:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-07-12 14:14:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-07-12 14:14:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:14:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:14:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-12 14:14:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-12 14:14:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:14:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:14:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-12 14:14:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-12 14:14:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:14:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:14:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-07-12 14:14:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-07-12 14:14:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 14:14:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 14:14:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 14:14:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 14:14:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-07-12 14:14:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-07-12 14:14:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-07-12 14:14:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-07-12 14:14:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:14:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:14:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-07-12 14:14:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-07-12 14:14:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:14:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 14:14:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 14:14:59,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:14:59,338 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 14:14:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 14:14:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:14:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:14:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:14:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:14:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:14:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:14:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-07-12 14:14:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-07-12 14:14:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-07-12 14:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-07-12 14:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-07-12 14:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-07-12 14:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 14:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 14:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-07-12 14:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-07-12 14:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 14:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 14:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-07-12 14:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-07-12 14:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-07-12 14:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-07-12 14:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 14:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 14:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-07-12 14:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-07-12 14:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-07-12 14:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 14:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 14:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 14:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-12 14:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 14:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 14:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:14:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 14:14:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 14:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 14:14:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-07-12 14:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-07-12 14:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-07-12 14:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-12 14:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-12 14:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:14:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:14:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-12 14:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 14:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 14:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 14:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 14:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 14:14:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_kill_vid [2022-07-12 14:14:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_kill_vid [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-07-12 14:14:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-07-12 14:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_change_mtu [2022-07-12 14:14:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_change_mtu [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 14:14:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 14:14:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:14:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 14:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-07-12 14:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-07-12 14:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_fix_features [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_fix_features [2022-07-12 14:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 14:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-07-12 14:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-07-12 14:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_slot_reset [2022-07-12 14:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_slot_reset [2022-07-12 14:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-07-12 14:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-07-12 14:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 14:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 14:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-07-12 14:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-07-12 14:14:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-12 14:14:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-12 14:14:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:14:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:14:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_mac [2022-07-12 14:14:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_mac [2022-07-12 14:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-07-12 14:14:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-07-12 14:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:14:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:14:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:14:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-07-12 14:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-07-12 14:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 14:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-07-12 14:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-07-12 14:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-07-12 14:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-07-12 14:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-07-12 14:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 14:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 14:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-07-12 14:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-07-12 14:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-07-12 14:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-07-12 14:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-07-12 14:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-07-12 14:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-07-12 14:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 14:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_stats [2022-07-12 14:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_stats [2022-07-12 14:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 14:14:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 14:14:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 14:14:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 14:14:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 14:14:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-07-12 14:14:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-07-12 14:15:00,309 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:15:00,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:15:01,108 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:16:58,006 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:16:58,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:16:58,026 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 14:16:58,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:58 BoogieIcfgContainer [2022-07-12 14:16:58,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:16:58,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:16:58,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:16:58,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:16:58,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:14:54" (1/3) ... [2022-07-12 14:16:58,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445eae70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:58, skipping insertion in model container [2022-07-12 14:16:58,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:14:58" (2/3) ... [2022-07-12 14:16:58,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445eae70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:58, skipping insertion in model container [2022-07-12 14:16:58,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:58" (3/3) ... [2022-07-12 14:16:58,036 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-07-12 14:16:58,046 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:16:58,046 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:16:58,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:16:58,133 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@1ff6a495, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@548f8deb [2022-07-12 14:16:58,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:16:58,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) [2022-07-12 14:16:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-12 14:16:58,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:16:58,167 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:16:58,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:16:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:16:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1608542857, now seen corresponding path program 1 times [2022-07-12 14:16:58,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:16:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550411075] [2022-07-12 14:16:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:16:58,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:16:58,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:16:58,195 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) [2022-07-12 14:16:58,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:17:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:01,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 14:17:01,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-07-12 14:17:01,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:01,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:01,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550411075] [2022-07-12 14:17:01,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550411075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:01,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:01,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:17:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916919344] [2022-07-12 14:17:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:01,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 14:17:01,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 14:17:01,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:17:01,600 INFO L87 Difference]: Start difference. First operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:01,800 INFO L93 Difference]: Finished difference Result 6187 states and 8979 transitions. [2022-07-12 14:17:01,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 14:17:01,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2022-07-12 14:17:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:01,835 INFO L225 Difference]: With dead ends: 6187 [2022-07-12 14:17:01,835 INFO L226 Difference]: Without dead ends: 3057 [2022-07-12 14:17:01,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:17:01,862 INFO L413 NwaCegarLoop]: 4453 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:01,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:17:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2022-07-12 14:17:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3057. [2022-07-12 14:17:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2068 states have (on average 1.2886847195357833) internal successors, (2665), 2090 states have internal predecessors, (2665), 862 states have call successors, (862), 127 states have call predecessors, (862), 126 states have return successors, (860), 856 states have call predecessors, (860), 860 states have call successors, (860) [2022-07-12 14:17:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4387 transitions. [2022-07-12 14:17:02,067 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4387 transitions. Word has length 172 [2022-07-12 14:17:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:02,068 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 4387 transitions. [2022-07-12 14:17:02,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4387 transitions. [2022-07-12 14:17:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-12 14:17:02,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:02,077 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:02,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:02,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:02,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash -333627761, now seen corresponding path program 1 times [2022-07-12 14:17:02,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:02,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055750396] [2022-07-12 14:17:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:02,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:02,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:02,298 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) [2022-07-12 14:17:02,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:17:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:05,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:17:05,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-12 14:17:06,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:06,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055750396] [2022-07-12 14:17:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055750396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:06,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:17:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845616623] [2022-07-12 14:17:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:17:06,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:17:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:17:06,377 INFO L87 Difference]: Start difference. First operand 3057 states and 4387 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:17:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:08,783 INFO L93 Difference]: Finished difference Result 6110 states and 8783 transitions. [2022-07-12 14:17:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:17:08,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 172 [2022-07-12 14:17:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:08,801 INFO L225 Difference]: With dead ends: 6110 [2022-07-12 14:17:08,802 INFO L226 Difference]: Without dead ends: 3060 [2022-07-12 14:17:08,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:17:08,817 INFO L413 NwaCegarLoop]: 4367 mSDtfsCounter, 6 mSDsluCounter, 17430 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21797 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:08,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21797 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 14:17:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2022-07-12 14:17:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3060. [2022-07-12 14:17:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 2070 states have (on average 1.288888888888889) internal successors, (2668), 2093 states have internal predecessors, (2668), 862 states have call successors, (862), 127 states have call predecessors, (862), 127 states have return successors, (865), 856 states have call predecessors, (865), 860 states have call successors, (865) [2022-07-12 14:17:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 4395 transitions. [2022-07-12 14:17:09,069 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 4395 transitions. Word has length 172 [2022-07-12 14:17:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:09,071 INFO L495 AbstractCegarLoop]: Abstraction has 3060 states and 4395 transitions. [2022-07-12 14:17:09,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:17:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 4395 transitions. [2022-07-12 14:17:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 14:17:09,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:09,074 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:09,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:09,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:09,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -573758929, now seen corresponding path program 1 times [2022-07-12 14:17:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:09,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221217270] [2022-07-12 14:17:09,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:09,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:09,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:09,297 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) [2022-07-12 14:17:09,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:17:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:13,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 4512 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:17:13,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-07-12 14:17:13,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-12 14:17:16,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221217270] [2022-07-12 14:17:16,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221217270] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:16,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:16,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 14:17:16,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621521978] [2022-07-12 14:17:16,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:16,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:17:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:17:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:17:16,091 INFO L87 Difference]: Start difference. First operand 3060 states and 4395 transitions. Second operand has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-12 14:17:20,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:20,090 INFO L93 Difference]: Finished difference Result 6121 states and 8805 transitions. [2022-07-12 14:17:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 14:17:20,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2022-07-12 14:17:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:20,110 INFO L225 Difference]: With dead ends: 6121 [2022-07-12 14:17:20,111 INFO L226 Difference]: Without dead ends: 3068 [2022-07-12 14:17:20,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:17:20,129 INFO L413 NwaCegarLoop]: 4369 mSDtfsCounter, 12 mSDsluCounter, 26147 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 30516 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:20,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 30516 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 14:17:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2022-07-12 14:17:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 3066. [2022-07-12 14:17:20,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2074 states have (on average 1.2888138862102219) internal successors, (2673), 2097 states have internal predecessors, (2673), 863 states have call successors, (863), 128 states have call predecessors, (863), 128 states have return successors, (866), 857 states have call predecessors, (866), 861 states have call successors, (866) [2022-07-12 14:17:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4402 transitions. [2022-07-12 14:17:20,232 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4402 transitions. Word has length 180 [2022-07-12 14:17:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:20,233 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 4402 transitions. [2022-07-12 14:17:20,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-12 14:17:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4402 transitions. [2022-07-12 14:17:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 14:17:20,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:20,236 INFO L195 NwaCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:20,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:20,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:20,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1319599759, now seen corresponding path program 2 times [2022-07-12 14:17:20,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:20,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795717978] [2022-07-12 14:17:20,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:17:20,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:20,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:20,456 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) [2022-07-12 14:17:20,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:17:23,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:17:23,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:17:23,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 4064 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:23,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2022-07-12 14:17:23,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:23,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:23,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795717978] [2022-07-12 14:17:23,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795717978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:23,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:23,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:23,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287420329] [2022-07-12 14:17:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:23,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:23,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:23,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:23,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:23,833 INFO L87 Difference]: Start difference. First operand 3066 states and 4402 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:17:25,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:25,745 INFO L93 Difference]: Finished difference Result 8571 states and 12288 transitions. [2022-07-12 14:17:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:25,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 188 [2022-07-12 14:17:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:25,778 INFO L225 Difference]: With dead ends: 8571 [2022-07-12 14:17:25,779 INFO L226 Difference]: Without dead ends: 5536 [2022-07-12 14:17:25,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:25,797 INFO L413 NwaCegarLoop]: 5371 mSDtfsCounter, 3552 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 9590 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:25,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3552 Valid, 9590 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 14:17:25,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2022-07-12 14:17:26,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 5514. [2022-07-12 14:17:26,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 3711 states have (on average 1.2829426030719482) internal successors, (4761), 3751 states have internal predecessors, (4761), 1566 states have call successors, (1566), 235 states have call predecessors, (1566), 236 states have return successors, (1574), 1554 states have call predecessors, (1574), 1564 states have call successors, (1574) [2022-07-12 14:17:26,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 7901 transitions. [2022-07-12 14:17:26,062 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 7901 transitions. Word has length 188 [2022-07-12 14:17:26,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:26,064 INFO L495 AbstractCegarLoop]: Abstraction has 5514 states and 7901 transitions. [2022-07-12 14:17:26,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:17:26,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 7901 transitions. [2022-07-12 14:17:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-12 14:17:26,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:26,069 INFO L195 NwaCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:26,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:26,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:26,283 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash 820005464, now seen corresponding path program 1 times [2022-07-12 14:17:26,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:26,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713363294] [2022-07-12 14:17:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:26,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:26,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:26,289 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) [2022-07-12 14:17:26,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:17:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:30,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 4843 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:17:30,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 119 proven. 3 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-12 14:17:31,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-12 14:17:34,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:34,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713363294] [2022-07-12 14:17:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713363294] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:34,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:34,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 14:17:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673325165] [2022-07-12 14:17:34,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:34,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 14:17:34,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:34,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 14:17:34,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:17:34,391 INFO L87 Difference]: Start difference. First operand 5514 states and 7901 transitions. Second operand has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 13 states have internal predecessors, (128), 4 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 14:17:40,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:40,824 INFO L93 Difference]: Finished difference Result 11043 states and 15852 transitions. [2022-07-12 14:17:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 14:17:40,825 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 13 states have internal predecessors, (128), 4 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 237 [2022-07-12 14:17:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:40,855 INFO L225 Difference]: With dead ends: 11043 [2022-07-12 14:17:40,856 INFO L226 Difference]: Without dead ends: 5533 [2022-07-12 14:17:40,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-12 14:17:40,877 INFO L413 NwaCegarLoop]: 4372 mSDtfsCounter, 26 mSDsluCounter, 30517 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 34889 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:40,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 34889 Invalid, 416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 14:17:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2022-07-12 14:17:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5527. [2022-07-12 14:17:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 3721 states have (on average 1.2832571889277076) internal successors, (4775), 3761 states have internal predecessors, (4775), 1567 states have call successors, (1567), 237 states have call predecessors, (1567), 238 states have return successors, (1580), 1555 states have call predecessors, (1580), 1565 states have call successors, (1580) [2022-07-12 14:17:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 7922 transitions. [2022-07-12 14:17:41,092 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 7922 transitions. Word has length 237 [2022-07-12 14:17:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:41,093 INFO L495 AbstractCegarLoop]: Abstraction has 5527 states and 7922 transitions. [2022-07-12 14:17:41,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 13 states have internal predecessors, (128), 4 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 14:17:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 7922 transitions. [2022-07-12 14:17:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-12 14:17:41,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:41,096 INFO L195 NwaCegarLoop]: trace histogram [20, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:41,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:41,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:41,311 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash 31492088, now seen corresponding path program 2 times [2022-07-12 14:17:41,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:41,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53784540] [2022-07-12 14:17:41,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:17:41,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:41,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:41,317 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) [2022-07-12 14:17:41,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:17:44,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:17:44,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:17:44,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 4071 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:44,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-07-12 14:17:44,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:44,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:44,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53784540] [2022-07-12 14:17:44,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53784540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:44,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:44,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:44,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730375154] [2022-07-12 14:17:44,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:44,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:44,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:44,849 INFO L87 Difference]: Start difference. First operand 5527 states and 7922 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 14:17:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:45,833 INFO L93 Difference]: Finished difference Result 16259 states and 23290 transitions. [2022-07-12 14:17:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:45,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 241 [2022-07-12 14:17:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:45,886 INFO L225 Difference]: With dead ends: 16259 [2022-07-12 14:17:45,886 INFO L226 Difference]: Without dead ends: 10772 [2022-07-12 14:17:45,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:45,909 INFO L413 NwaCegarLoop]: 5428 mSDtfsCounter, 4193 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4193 SdHoareTripleChecker+Valid, 9742 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:45,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4193 Valid, 9742 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 14:17:45,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10772 states. [2022-07-12 14:17:46,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10772 to 10766. [2022-07-12 14:17:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10766 states, 7253 states have (on average 1.2818144216186405) internal successors, (9297), 7330 states have internal predecessors, (9297), 3045 states have call successors, (3045), 464 states have call predecessors, (3045), 467 states have return successors, (3068), 3023 states have call predecessors, (3068), 3043 states have call successors, (3068) [2022-07-12 14:17:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10766 states to 10766 states and 15410 transitions. [2022-07-12 14:17:46,453 INFO L78 Accepts]: Start accepts. Automaton has 10766 states and 15410 transitions. Word has length 241 [2022-07-12 14:17:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:46,454 INFO L495 AbstractCegarLoop]: Abstraction has 10766 states and 15410 transitions. [2022-07-12 14:17:46,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 14:17:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10766 states and 15410 transitions. [2022-07-12 14:17:46,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-07-12 14:17:46,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:46,462 INFO L195 NwaCegarLoop]: trace histogram [32, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:46,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:46,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:46,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1329511175, now seen corresponding path program 1 times [2022-07-12 14:17:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:46,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534154278] [2022-07-12 14:17:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:46,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:46,680 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) [2022-07-12 14:17:46,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:17:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:51,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 5394 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 14:17:51,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 584 proven. 6 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2022-07-12 14:17:52,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 232 refuted. 0 times theorem prover too weak. 2012 trivial. 0 not checked. [2022-07-12 14:17:56,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534154278] [2022-07-12 14:17:56,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534154278] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:56,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:56,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 14:17:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645166043] [2022-07-12 14:17:56,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:56,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 14:17:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:56,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 14:17:56,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:17:56,392 INFO L87 Difference]: Start difference. First operand 10766 states and 15410 transitions. Second operand has 15 states, 13 states have (on average 8.923076923076923) internal successors, (116), 15 states have internal predecessors, (116), 4 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-12 14:18:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:06,406 INFO L93 Difference]: Finished difference Result 21563 states and 30915 transitions. [2022-07-12 14:18:06,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 14:18:06,407 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.923076923076923) internal successors, (116), 15 states have internal predecessors, (116), 4 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 387 [2022-07-12 14:18:06,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:06,457 INFO L225 Difference]: With dead ends: 21563 [2022-07-12 14:18:06,458 INFO L226 Difference]: Without dead ends: 10792 [2022-07-12 14:18:06,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:18:06,498 INFO L413 NwaCegarLoop]: 4373 mSDtfsCounter, 27 mSDsluCounter, 47971 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 52344 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:06,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 52344 Invalid, 665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-07-12 14:18:06,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10792 states. [2022-07-12 14:18:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10792 to 10770. [2022-07-12 14:18:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10770 states, 7257 states have (on average 1.282210279729916) internal successors, (9305), 7334 states have internal predecessors, (9305), 3045 states have call successors, (3045), 464 states have call predecessors, (3045), 467 states have return successors, (3068), 3023 states have call predecessors, (3068), 3043 states have call successors, (3068) [2022-07-12 14:18:06,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10770 states to 10770 states and 15418 transitions. [2022-07-12 14:18:06,934 INFO L78 Accepts]: Start accepts. Automaton has 10770 states and 15418 transitions. Word has length 387 [2022-07-12 14:18:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:06,934 INFO L495 AbstractCegarLoop]: Abstraction has 10770 states and 15418 transitions. [2022-07-12 14:18:06,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.923076923076923) internal successors, (116), 15 states have internal predecessors, (116), 4 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-12 14:18:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 10770 states and 15418 transitions. [2022-07-12 14:18:06,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-12 14:18:06,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:06,943 INFO L195 NwaCegarLoop]: trace histogram [40, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:07,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-12 14:18:07,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:07,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:07,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash -238388093, now seen corresponding path program 2 times [2022-07-12 14:18:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:07,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069639769] [2022-07-12 14:18:07,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:18:07,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:07,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:07,157 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) [2022-07-12 14:18:07,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:18:10,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:18:10,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:18:10,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:18:10,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2624 trivial. 0 not checked. [2022-07-12 14:18:20,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:20,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:20,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069639769] [2022-07-12 14:18:20,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069639769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:20,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:20,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:18:20,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432524276] [2022-07-12 14:18:20,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:20,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:18:20,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:20,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:18:20,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:20,164 INFO L87 Difference]: Start difference. First operand 10770 states and 15418 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-12 14:18:20,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:20,310 INFO L93 Difference]: Finished difference Result 10770 states and 15418 transitions. [2022-07-12 14:18:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:18:20,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 395 [2022-07-12 14:18:20,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:20,311 INFO L225 Difference]: With dead ends: 10770 [2022-07-12 14:18:20,311 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 14:18:20,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:20,337 INFO L413 NwaCegarLoop]: 4380 mSDtfsCounter, 4247 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:20,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 4380 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:18:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 14:18:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 14:18:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 14:18:20,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 14:18:20,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 395 [2022-07-12 14:18:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:20,341 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 14:18:20,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-12 14:18:20,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 14:18:20,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 14:18:20,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 14:18:20,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:20,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:20,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.