./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--irda--vlsi_ir.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--irda--vlsi_ir.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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:20:02,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:20:02,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:20:02,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:20:02,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:20:02,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:20:02,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:20:02,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:20:02,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:20:02,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:20:02,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:20:02,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:20:02,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:20:02,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:20:02,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:20:02,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:20:02,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:20:02,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:20:02,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:20:02,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:20:02,476 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:20:02,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:20:02,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:20:02,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:20:02,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:20:02,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:20:02,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:20:02,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:20:02,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:20:02,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:20:02,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:20:02,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:20:02,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:20:02,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:20:02,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:20:02,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:20:02,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:20:02,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:20:02,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:20:02,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:20:02,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:20:02,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:20:02,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:20:02,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:20:02,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:20:02,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:20:02,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:20:02,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:20:02,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:20:02,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:20:02,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:20:02,504 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:20:02,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:20:02,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:20:02,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:20:02,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:20:02,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:20:02,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:20:02,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:20:02,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:20:02,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:20:02,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:20:02,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2022-07-12 14:20:02,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:20:02,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:20:02,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:20:02,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:20:02,667 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:20:02,668 INFO L432 ainManager$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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-12 14:20:02,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2a5bbbb/a6bded6c9aa04214966b79732a024998/FLAG6484d0b27 [2022-07-12 14:20:03,386 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:20:03,387 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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-12 14:20:03,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2a5bbbb/a6bded6c9aa04214966b79732a024998/FLAG6484d0b27 [2022-07-12 14:20:03,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2a5bbbb/a6bded6c9aa04214966b79732a024998 [2022-07-12 14:20:03,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:20:03,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:20:03,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:20:03,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:20:03,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:20:03,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:03" (1/1) ... [2022-07-12 14:20:03,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e972fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:03, skipping insertion in model container [2022-07-12 14:20:03,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:03" (1/1) ... [2022-07-12 14:20:03,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:20:03,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:20:04,975 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-12 14:20:05,005 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 14:20:05,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:05,046 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:20:05,292 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: clkctl = (unsigned int )clkctl & 127U [8431] 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 14:20:05,299 INFO L158 Benchmark]: Toolchain (without parser) took 1765.11ms. Allocated memory was 127.9MB in the beginning and 203.4MB in the end (delta: 75.5MB). Free memory was 86.4MB in the beginning and 128.2MB in the end (delta: -41.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2022-07-12 14:20:05,300 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 56.0MB in the beginning and 55.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:20:05,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1762.30ms. Allocated memory was 127.9MB in the beginning and 203.4MB in the end (delta: 75.5MB). Free memory was 85.8MB in the beginning and 128.2MB in the end (delta: -42.4MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-07-12 14:20:05,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 56.0MB in the beginning and 55.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1762.30ms. Allocated memory was 127.9MB in the beginning and 203.4MB in the end (delta: 75.5MB). Free memory was 85.8MB in the beginning and 128.2MB in the end (delta: -42.4MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8431] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8431]: 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--irda--vlsi_ir.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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:20:06,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:20:06,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:20:06,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:20:06,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:20:06,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:20:06,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:20:06,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:20:06,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:20:06,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:20:06,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:20:06,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:20:06,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:20:06,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:20:06,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:20:06,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:20:06,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:20:06,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:20:06,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:20:06,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:20:06,929 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:20:06,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:20:06,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:20:06,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:20:06,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:20:06,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:20:06,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:20:06,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:20:06,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:20:06,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:20:06,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:20:06,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:20:06,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:20:06,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:20:06,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:20:06,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:20:06,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:20:06,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:20:06,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:20:06,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:20:06,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:20:06,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:20:06,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:20:07,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:20:07,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:20:07,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:20:07,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:20:07,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:20:07,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:20:07,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:20:07,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:20:07,003 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:20:07,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:20:07,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:20:07,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:20:07,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:20:07,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:20:07,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:20:07,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:20:07,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:20:07,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:20:07,006 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:20:07,007 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:20:07,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:20:07,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:20:07,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:20:07,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2022-07-12 14:20:07,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:20:07,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:20:07,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:20:07,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:20:07,312 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:20:07,313 INFO L432 ainManager$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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-12 14:20:07,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79eb1b977/d212244842234692823436664d045285/FLAGafd8401fa [2022-07-12 14:20:07,914 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:20:07,914 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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-12 14:20:07,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79eb1b977/d212244842234692823436664d045285/FLAGafd8401fa [2022-07-12 14:20:08,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79eb1b977/d212244842234692823436664d045285 [2022-07-12 14:20:08,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:20:08,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:20:08,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:20:08,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:20:08,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:20:08,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:08" (1/1) ... [2022-07-12 14:20:08,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ece46ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:08, skipping insertion in model container [2022-07-12 14:20:08,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:08" (1/1) ... [2022-07-12 14:20:08,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:20:08,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:20:09,896 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-12 14:20:09,918 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 14:20:09,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:09,958 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:20:10,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:20:10,219 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-12 14:20:10,236 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 14:20:10,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:10,259 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:20:10,524 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-12 14:20:10,527 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 14:20:10,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:10,609 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:20:10,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10 WrapperNode [2022-07-12 14:20:10,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:20:10,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:20:10,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:20:10,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:20:10,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,832 INFO L137 Inliner]: procedures = 289, calls = 1982, calls flagged for inlining = 131, calls inlined = 123, statements flattened = 4387 [2022-07-12 14:20:10,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:20:10,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:20:10,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:20:10,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:20:10,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:10,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:11,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:11,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:20:11,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:20:11,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:20:11,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:20:11,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (1/1) ... [2022-07-12 14:20:11,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:20:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:20:11,046 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 14:20:11,060 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 14:20:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 14:20:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 14:20:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:20:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:20:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2022-07-12 14:20:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2022-07-12 14:20:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:20:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 14:20:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:20:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:20:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:20:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 14:20:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 14:20:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:20:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:20:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-07-12 14:20:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-07-12 14:20:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:20:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:20:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-12 14:20:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-12 14:20:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-07-12 14:20:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-07-12 14:20:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 14:20:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 14:20:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-07-12 14:20:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-07-12 14:20:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-12 14:20:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-12 14:20:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 14:20:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 14:20:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:20:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:20:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-07-12 14:20:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-07-12 14:20:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:20:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:20:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 14:20:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 14:20:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:20:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:20:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:20:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:20:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:20:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:20:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 14:20:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 14:20:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-12 14:20:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-12 14:20:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-07-12 14:20:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-07-12 14:20:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 14:20:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 14:20:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:20:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-07-12 14:20:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-07-12 14:20:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 14:20:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 14:20:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:20:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 14:20:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 14:20:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 14:20:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-12 14:20:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-12 14:20:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2022-07-12 14:20:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2022-07-12 14:20:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:20:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:20:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-07-12 14:20:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-07-12 14:20:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 14:20:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:20:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-07-12 14:20:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-12 14:20:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:20:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-12 14:20:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 14:20:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 14:20:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 14:20:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 14:20:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-07-12 14:20:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-07-12 14:20:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-12 14:20:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-12 14:20:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 14:20:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 14:20:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:20:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:20:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 14:20:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 14:20:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:20:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:20:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-07-12 14:20:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-07-12 14:20:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-07-12 14:20:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-07-12 14:20:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:20:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:20:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-07-12 14:20:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-07-12 14:20:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-07-12 14:20:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-07-12 14:20:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:20:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:20:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:20:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:20:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-07-12 14:20:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-07-12 14:20:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 14:20:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:20:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:20:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:20:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:20:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-07-12 14:20:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 14:20:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-07-12 14:20:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-07-12 14:20:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-12 14:20:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-07-12 14:20:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-12 14:20:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-12 14:20:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:20:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:20:11,618 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:20:11,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:20:13,425 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:20:34,596 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:20:34,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:20:34,617 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:20:34,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:34 BoogieIcfgContainer [2022-07-12 14:20:34,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:20:34,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:20:34,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:20:34,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:20:34,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:20:08" (1/3) ... [2022-07-12 14:20:34,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2037de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:34, skipping insertion in model container [2022-07-12 14:20:34,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:10" (2/3) ... [2022-07-12 14:20:34,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2037de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:34, skipping insertion in model container [2022-07-12 14:20:34,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:34" (3/3) ... [2022-07-12 14:20:34,627 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-12 14:20:34,637 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:20:34,637 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:20:34,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:20:34,716 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@14265d63, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b132ab8 [2022-07-12 14:20:34,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:20:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) [2022-07-12 14:20:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 14:20:34,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:34,753 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:34,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:34,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash -754527677, now seen corresponding path program 1 times [2022-07-12 14:20:34,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:34,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64850909] [2022-07-12 14:20:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:34,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:34,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:34,779 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 14:20:34,826 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 14:20:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:35,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 14:20:35,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-12 14:20:36,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:36,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:36,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64850909] [2022-07-12 14:20:36,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64850909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:36,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:36,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:20:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220693282] [2022-07-12 14:20:36,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:36,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 14:20:36,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 14:20:36,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:20:36,043 INFO L87 Difference]: Start difference. First operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:20:36,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:36,133 INFO L93 Difference]: Finished difference Result 3245 states and 4630 transitions. [2022-07-12 14:20:36,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 14:20:36,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2022-07-12 14:20:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:36,151 INFO L225 Difference]: With dead ends: 3245 [2022-07-12 14:20:36,151 INFO L226 Difference]: Without dead ends: 1601 [2022-07-12 14:20:36,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 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 14:20:36,163 INFO L413 NwaCegarLoop]: 2293 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, 2293 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 14:20:36,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:20:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-07-12 14:20:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2022-07-12 14:20:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1110 states have (on average 1.3117117117117116) internal successors, (1456), 1126 states have internal predecessors, (1456), 401 states have call successors, (401), 90 states have call predecessors, (401), 89 states have return successors, (400), 399 states have call predecessors, (400), 400 states have call successors, (400) [2022-07-12 14:20:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2257 transitions. [2022-07-12 14:20:36,275 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2257 transitions. Word has length 175 [2022-07-12 14:20:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:36,276 INFO L495 AbstractCegarLoop]: Abstraction has 1601 states and 2257 transitions. [2022-07-12 14:20:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:20:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2257 transitions. [2022-07-12 14:20:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 14:20:36,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:36,281 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:36,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 14:20:36,491 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 14:20:36,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:36,492 INFO L85 PathProgramCache]: Analyzing trace with hash -890110471, now seen corresponding path program 1 times [2022-07-12 14:20:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:36,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226721652] [2022-07-12 14:20:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:36,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:36,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:36,497 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 14:20:36,549 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 14:20:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:37,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:20:37,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-12 14:20:38,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:38,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:38,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226721652] [2022-07-12 14:20:38,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226721652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:38,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:38,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:20:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643487029] [2022-07-12 14:20:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:38,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:20:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:20:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:20:38,161 INFO L87 Difference]: Start difference. First operand 1601 states and 2257 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:20:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:38,640 INFO L93 Difference]: Finished difference Result 3194 states and 4509 transitions. [2022-07-12 14:20:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:20:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2022-07-12 14:20:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:38,650 INFO L225 Difference]: With dead ends: 3194 [2022-07-12 14:20:38,650 INFO L226 Difference]: Without dead ends: 1602 [2022-07-12 14:20:38,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:38,658 INFO L413 NwaCegarLoop]: 2249 mSDtfsCounter, 6 mSDsluCounter, 8975 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11224 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:38,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11224 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:20:38,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-07-12 14:20:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1602. [2022-07-12 14:20:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1111 states have (on average 1.3114311431143115) internal successors, (1457), 1127 states have internal predecessors, (1457), 401 states have call successors, (401), 90 states have call predecessors, (401), 89 states have return successors, (400), 399 states have call predecessors, (400), 400 states have call successors, (400) [2022-07-12 14:20:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2258 transitions. [2022-07-12 14:20:38,719 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2258 transitions. Word has length 175 [2022-07-12 14:20:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:38,719 INFO L495 AbstractCegarLoop]: Abstraction has 1602 states and 2258 transitions. [2022-07-12 14:20:38,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:20:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2258 transitions. [2022-07-12 14:20:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 14:20:38,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:38,723 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:38,764 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 14:20:38,959 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 14:20:38,960 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:38,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1406706502, now seen corresponding path program 1 times [2022-07-12 14:20:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:38,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427892460] [2022-07-12 14:20:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:38,976 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 14:20:38,978 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 14:20:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:40,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:20:40,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:40,495 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-12 14:20:40,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:20:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-12 14:20:41,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:41,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427892460] [2022-07-12 14:20:41,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427892460] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:20:41,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:20:41,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 14:20:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824298882] [2022-07-12 14:20:41,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:20:41,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:20:41,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:20:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:20:41,374 INFO L87 Difference]: Start difference. First operand 1602 states and 2258 transitions. Second operand has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 14:20:42,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:42,113 INFO L93 Difference]: Finished difference Result 3201 states and 4517 transitions. [2022-07-12 14:20:42,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 14:20:42,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 180 [2022-07-12 14:20:42,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:42,123 INFO L225 Difference]: With dead ends: 3201 [2022-07-12 14:20:42,124 INFO L226 Difference]: Without dead ends: 1608 [2022-07-12 14:20:42,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-12 14:20:42,132 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 10 mSDsluCounter, 8976 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11226 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:42,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11226 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 14:20:42,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-07-12 14:20:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2022-07-12 14:20:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1115 states have (on average 1.3103139013452916) internal successors, (1461), 1131 states have internal predecessors, (1461), 402 states have call successors, (402), 91 states have call predecessors, (402), 90 states have return successors, (401), 400 states have call predecessors, (401), 401 states have call successors, (401) [2022-07-12 14:20:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2264 transitions. [2022-07-12 14:20:42,183 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2264 transitions. Word has length 180 [2022-07-12 14:20:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:42,184 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2264 transitions. [2022-07-12 14:20:42,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 14:20:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2264 transitions. [2022-07-12 14:20:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-12 14:20:42,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:42,188 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:42,227 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 14:20:42,403 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 14:20:42,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:42,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1346488039, now seen corresponding path program 2 times [2022-07-12 14:20:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:42,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58070154] [2022-07-12 14:20:42,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:20:42,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:42,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:42,417 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 14:20:42,420 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 14:20:43,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:20:43,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:20:43,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:20:43,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-12 14:20:43,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:43,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:43,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58070154] [2022-07-12 14:20:43,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58070154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:43,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:43,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:20:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11589227] [2022-07-12 14:20:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:43,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:20:43,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:20:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:20:43,572 INFO L87 Difference]: Start difference. First operand 1608 states and 2264 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:20:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:43,995 INFO L93 Difference]: Finished difference Result 4244 states and 5966 transitions. [2022-07-12 14:20:43,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:20:43,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 185 [2022-07-12 14:20:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:44,008 INFO L225 Difference]: With dead ends: 4244 [2022-07-12 14:20:44,009 INFO L226 Difference]: Without dead ends: 2669 [2022-07-12 14:20:44,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 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 14:20:44,016 INFO L413 NwaCegarLoop]: 2523 mSDtfsCounter, 1533 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:44,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 4676 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:20:44,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-07-12 14:20:44,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2663. [2022-07-12 14:20:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 1852 states have (on average 1.3142548596112311) internal successors, (2434), 1877 states have internal predecessors, (2434), 651 states have call successors, (651), 160 states have call predecessors, (651), 159 states have return successors, (654), 647 states have call predecessors, (654), 650 states have call successors, (654) [2022-07-12 14:20:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3739 transitions. [2022-07-12 14:20:44,095 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3739 transitions. Word has length 185 [2022-07-12 14:20:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:44,096 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 3739 transitions. [2022-07-12 14:20:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:20:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3739 transitions. [2022-07-12 14:20:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-12 14:20:44,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:44,103 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:44,130 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 14:20:44,315 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 14:20:44,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 839830869, now seen corresponding path program 1 times [2022-07-12 14:20:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:44,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127352891] [2022-07-12 14:20:44,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:44,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:44,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:44,319 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 14:20:44,347 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 14:20:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:45,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:20:45,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-07-12 14:20:45,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:20:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-12 14:20:47,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:47,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127352891] [2022-07-12 14:20:47,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127352891] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:20:47,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:20:47,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 14:20:47,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994183462] [2022-07-12 14:20:47,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:20:47,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 14:20:47,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:47,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 14:20:47,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:20:47,166 INFO L87 Difference]: Start difference. First operand 2663 states and 3739 transitions. Second operand has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:20:48,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:48,224 INFO L93 Difference]: Finished difference Result 5324 states and 7479 transitions. [2022-07-12 14:20:48,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 14:20:48,225 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 245 [2022-07-12 14:20:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:48,236 INFO L225 Difference]: With dead ends: 5324 [2022-07-12 14:20:48,236 INFO L226 Difference]: Without dead ends: 2665 [2022-07-12 14:20:48,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-12 14:20:48,245 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 13 mSDsluCounter, 17962 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20212 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:48,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20212 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 14:20:48,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-07-12 14:20:48,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-07-12 14:20:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 1854 states have (on average 1.313915857605178) internal successors, (2436), 1879 states have internal predecessors, (2436), 651 states have call successors, (651), 160 states have call predecessors, (651), 159 states have return successors, (654), 647 states have call predecessors, (654), 650 states have call successors, (654) [2022-07-12 14:20:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3741 transitions. [2022-07-12 14:20:48,313 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3741 transitions. Word has length 245 [2022-07-12 14:20:48,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:48,314 INFO L495 AbstractCegarLoop]: Abstraction has 2665 states and 3741 transitions. [2022-07-12 14:20:48,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:20:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3741 transitions. [2022-07-12 14:20:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-12 14:20:48,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:48,319 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:48,348 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 14:20:48,527 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 14:20:48,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:48,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1281569054, now seen corresponding path program 2 times [2022-07-12 14:20:48,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:48,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302092705] [2022-07-12 14:20:48,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:20:48,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:48,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:48,545 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 14:20:48,566 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 14:20:49,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:20:49,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:20:49,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:49,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-07-12 14:20:50,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:50,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302092705] [2022-07-12 14:20:50,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302092705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:50,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:50,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:50,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268120702] [2022-07-12 14:20:50,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:50,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:50,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:50,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:50,638 INFO L87 Difference]: Start difference. First operand 2665 states and 3741 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:20:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:51,025 INFO L93 Difference]: Finished difference Result 7933 states and 11154 transitions. [2022-07-12 14:20:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:51,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2022-07-12 14:20:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:51,050 INFO L225 Difference]: With dead ends: 7933 [2022-07-12 14:20:51,050 INFO L226 Difference]: Without dead ends: 5308 [2022-07-12 14:20:51,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:51,062 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 2201 mSDsluCounter, 7565 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 10246 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:51,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 10246 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:20:51,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2022-07-12 14:20:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5285. [2022-07-12 14:20:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 3678 states have (on average 1.3148450244698207) internal successors, (4836), 3736 states have internal predecessors, (4836), 1289 states have call successors, (1289), 318 states have call predecessors, (1289), 317 states have return successors, (1298), 1274 states have call predecessors, (1298), 1288 states have call successors, (1298) [2022-07-12 14:20:51,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 7423 transitions. [2022-07-12 14:20:51,226 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 7423 transitions. Word has length 250 [2022-07-12 14:20:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:51,227 INFO L495 AbstractCegarLoop]: Abstraction has 5285 states and 7423 transitions. [2022-07-12 14:20:51,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:20:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 7423 transitions. [2022-07-12 14:20:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-12 14:20:51,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:51,234 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:51,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 14:20:51,447 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 14:20:51,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:51,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 964644521, now seen corresponding path program 1 times [2022-07-12 14:20:51,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:51,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938527438] [2022-07-12 14:20:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:51,468 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 14:20:51,469 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 14:20:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:52,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 14:20:52,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-07-12 14:20:53,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:20:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-07-12 14:20:54,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:54,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938527438] [2022-07-12 14:20:54,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938527438] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:20:54,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:20:54,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 14:20:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100094820] [2022-07-12 14:20:54,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:20:54,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 14:20:54,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:54,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 14:20:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:20:54,544 INFO L87 Difference]: Start difference. First operand 5285 states and 7423 transitions. Second operand has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:20:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:55,719 INFO L93 Difference]: Finished difference Result 10571 states and 14854 transitions. [2022-07-12 14:20:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 14:20:55,720 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 253 [2022-07-12 14:20:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:55,741 INFO L225 Difference]: With dead ends: 10571 [2022-07-12 14:20:55,741 INFO L226 Difference]: Without dead ends: 5288 [2022-07-12 14:20:55,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-07-12 14:20:55,754 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 12 mSDsluCounter, 15710 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17960 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:55,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17960 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 14:20:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5288 states. [2022-07-12 14:20:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 5288. [2022-07-12 14:20:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3681 states have (on average 1.3145884270578647) internal successors, (4839), 3739 states have internal predecessors, (4839), 1289 states have call successors, (1289), 318 states have call predecessors, (1289), 317 states have return successors, (1298), 1274 states have call predecessors, (1298), 1288 states have call successors, (1298) [2022-07-12 14:20:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7426 transitions. [2022-07-12 14:20:55,864 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7426 transitions. Word has length 253 [2022-07-12 14:20:55,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:55,865 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7426 transitions. [2022-07-12 14:20:55,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:20:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7426 transitions. [2022-07-12 14:20:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-12 14:20:55,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:55,871 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:55,900 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 14:20:56,090 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 14:20:56,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:56,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1279434698, now seen corresponding path program 2 times [2022-07-12 14:20:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:56,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770804186] [2022-07-12 14:20:56,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:20:56,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:56,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:56,093 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 14:20:56,095 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 14:20:57,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:20:57,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:20:57,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:57,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-07-12 14:20:58,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:58,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:58,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770804186] [2022-07-12 14:20:58,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770804186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:58,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:58,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:58,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789974328] [2022-07-12 14:20:58,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:58,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:58,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:58,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:58,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:58,199 INFO L87 Difference]: Start difference. First operand 5288 states and 7426 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:20:58,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:58,636 INFO L93 Difference]: Finished difference Result 15826 states and 22248 transitions. [2022-07-12 14:20:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:58,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 258 [2022-07-12 14:20:58,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:58,692 INFO L225 Difference]: With dead ends: 15826 [2022-07-12 14:20:58,693 INFO L226 Difference]: Without dead ends: 10579 [2022-07-12 14:20:58,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:58,712 INFO L413 NwaCegarLoop]: 2794 mSDtfsCounter, 2202 mSDsluCounter, 7789 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 10583 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:58,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 10583 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:20:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-07-12 14:20:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 10540. [2022-07-12 14:20:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10540 states, 7343 states have (on average 1.3148576875936266) internal successors, (9655), 7457 states have internal predecessors, (9655), 2563 states have call successors, (2563), 634 states have call predecessors, (2563), 633 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-12 14:20:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10540 states to 10540 states and 14804 transitions. [2022-07-12 14:20:58,973 INFO L78 Accepts]: Start accepts. Automaton has 10540 states and 14804 transitions. Word has length 258 [2022-07-12 14:20:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:58,976 INFO L495 AbstractCegarLoop]: Abstraction has 10540 states and 14804 transitions. [2022-07-12 14:20:58,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:20:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 10540 states and 14804 transitions. [2022-07-12 14:20:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-12 14:20:58,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:58,981 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:59,022 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 14:20:59,195 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 14:20:59,196 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:59,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:59,196 INFO L85 PathProgramCache]: Analyzing trace with hash -643065480, now seen corresponding path program 1 times [2022-07-12 14:20:59,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:59,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637689010] [2022-07-12 14:20:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:59,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:59,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:59,199 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:59,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:21:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:00,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:21:00,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 132 proven. 10 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-12 14:21:00,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-12 14:21:02,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:02,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637689010] [2022-07-12 14:21:02,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637689010] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:02,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:02,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-12 14:21:02,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102633218] [2022-07-12 14:21:02,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:02,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 14:21:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 14:21:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-12 14:21:02,711 INFO L87 Difference]: Start difference. First operand 10540 states and 14804 transitions. Second operand has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:21:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:04,559 INFO L93 Difference]: Finished difference Result 21090 states and 29635 transitions. [2022-07-12 14:21:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 14:21:04,560 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 257 [2022-07-12 14:21:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:04,601 INFO L225 Difference]: With dead ends: 21090 [2022-07-12 14:21:04,601 INFO L226 Difference]: Without dead ends: 10553 [2022-07-12 14:21:04,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-12 14:21:04,634 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 13 mSDsluCounter, 17961 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20212 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:04,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20212 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 14:21:04,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2022-07-12 14:21:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 10553. [2022-07-12 14:21:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10553 states, 7355 states have (on average 1.3144799456152276) internal successors, (9668), 7469 states have internal predecessors, (9668), 2563 states have call successors, (2563), 635 states have call predecessors, (2563), 634 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-12 14:21:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 14817 transitions. [2022-07-12 14:21:04,926 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 14817 transitions. Word has length 257 [2022-07-12 14:21:04,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:04,926 INFO L495 AbstractCegarLoop]: Abstraction has 10553 states and 14817 transitions. [2022-07-12 14:21:04,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:21:04,927 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 14817 transitions. [2022-07-12 14:21:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-12 14:21:04,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:04,933 INFO L195 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:04,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:05,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:05,156 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1523738059, now seen corresponding path program 1 times [2022-07-12 14:21:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:05,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600829020] [2022-07-12 14:21:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:05,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:05,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:05,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 14:21:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:06,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 14:21:06,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 158 proven. 15 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-07-12 14:21:07,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:21:09,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600829020] [2022-07-12 14:21:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600829020] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:09,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:09,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-12 14:21:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972978373] [2022-07-12 14:21:09,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:09,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 14:21:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 14:21:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-12 14:21:09,508 INFO L87 Difference]: Start difference. First operand 10553 states and 14817 transitions. Second operand has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:21:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:11,813 INFO L93 Difference]: Finished difference Result 21110 states and 29650 transitions. [2022-07-12 14:21:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 14:21:11,814 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 258 [2022-07-12 14:21:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:11,855 INFO L225 Difference]: With dead ends: 21110 [2022-07-12 14:21:11,855 INFO L226 Difference]: Without dead ends: 10558 [2022-07-12 14:21:11,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-12 14:21:11,892 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 20 mSDsluCounter, 24705 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 26957 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:11,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 26957 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 14:21:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10558 states. [2022-07-12 14:21:12,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10558 to 10558. [2022-07-12 14:21:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 7360 states have (on average 1.314266304347826) internal successors, (9673), 7474 states have internal predecessors, (9673), 2563 states have call successors, (2563), 635 states have call predecessors, (2563), 634 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-12 14:21:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 14822 transitions. [2022-07-12 14:21:12,176 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 14822 transitions. Word has length 258 [2022-07-12 14:21:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:12,176 INFO L495 AbstractCegarLoop]: Abstraction has 10558 states and 14822 transitions. [2022-07-12 14:21:12,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-12 14:21:12,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 14822 transitions. [2022-07-12 14:21:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-12 14:21:12,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:12,185 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:12,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:12,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:12,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1981287955, now seen corresponding path program 2 times [2022-07-12 14:21:12,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:12,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111580501] [2022-07-12 14:21:12,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:21:12,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:12,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:12,415 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:12,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 14:21:13,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:21:13,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:21:13,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:21:13,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2022-07-12 14:21:14,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:14,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:14,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111580501] [2022-07-12 14:21:14,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111580501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:14,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:14,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:21:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170618051] [2022-07-12 14:21:14,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:21:14,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:14,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:21:14,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:21:14,845 INFO L87 Difference]: Start difference. First operand 10558 states and 14822 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:21:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:15,506 INFO L93 Difference]: Finished difference Result 31656 states and 44473 transitions. [2022-07-12 14:21:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:21:15,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 260 [2022-07-12 14:21:15,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:15,597 INFO L225 Difference]: With dead ends: 31656 [2022-07-12 14:21:15,598 INFO L226 Difference]: Without dead ends: 21149 [2022-07-12 14:21:15,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:21:15,639 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 2200 mSDsluCounter, 7833 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 10649 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:15,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 10649 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:21:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21149 states. [2022-07-12 14:21:16,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21149 to 21074. [2022-07-12 14:21:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21074 states, 14696 states have (on average 1.3140310288513881) internal successors, (19311), 14920 states have internal predecessors, (19311), 5109 states have call successors, (5109), 1269 states have call predecessors, (5109), 1268 states have return successors, (5164), 5060 states have call predecessors, (5164), 5108 states have call successors, (5164) [2022-07-12 14:21:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21074 states to 21074 states and 29584 transitions. [2022-07-12 14:21:16,215 INFO L78 Accepts]: Start accepts. Automaton has 21074 states and 29584 transitions. Word has length 260 [2022-07-12 14:21:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:16,216 INFO L495 AbstractCegarLoop]: Abstraction has 21074 states and 29584 transitions. [2022-07-12 14:21:16,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:21:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 21074 states and 29584 transitions. [2022-07-12 14:21:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-07-12 14:21:16,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:16,222 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:16,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:16,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:16,441 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:16,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:16,441 INFO L85 PathProgramCache]: Analyzing trace with hash 708415928, now seen corresponding path program 2 times [2022-07-12 14:21:16,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:16,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423906670] [2022-07-12 14:21:16,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:21:16,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:16,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:16,444 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:16,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 14:21:17,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:21:17,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:21:17,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:21:17,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2022-07-12 14:21:18,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:18,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:18,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423906670] [2022-07-12 14:21:18,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423906670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:18,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:18,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:21:18,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326248716] [2022-07-12 14:21:18,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:18,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:21:18,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:18,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:21:18,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:21:18,695 INFO L87 Difference]: Start difference. First operand 21074 states and 29584 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:21:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:19,642 INFO L93 Difference]: Finished difference Result 63045 states and 88499 transitions. [2022-07-12 14:21:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:21:19,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 261 [2022-07-12 14:21:19,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:19,789 INFO L225 Difference]: With dead ends: 63045 [2022-07-12 14:21:19,789 INFO L226 Difference]: Without dead ends: 42022 [2022-07-12 14:21:19,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:21:19,859 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 2201 mSDsluCounter, 7493 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 10139 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:19,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 10139 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:21:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42022 states. [2022-07-12 14:21:20,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42022 to 41881. [2022-07-12 14:21:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41881 states, 29222 states have (on average 1.3130175894873726) internal successors, (38369), 29654 states have internal predecessors, (38369), 10124 states have call successors, (10124), 2535 states have call predecessors, (10124), 2534 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-12 14:21:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41881 states to 41881 states and 58744 transitions. [2022-07-12 14:21:21,378 INFO L78 Accepts]: Start accepts. Automaton has 41881 states and 58744 transitions. Word has length 261 [2022-07-12 14:21:21,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:21,381 INFO L495 AbstractCegarLoop]: Abstraction has 41881 states and 58744 transitions. [2022-07-12 14:21:21,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:21:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 41881 states and 58744 transitions. [2022-07-12 14:21:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-12 14:21:21,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:21,393 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:21,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:21,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:21,632 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1604518581, now seen corresponding path program 1 times [2022-07-12 14:21:21,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:21,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259066342] [2022-07-12 14:21:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:21,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:21,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:21,648 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:21,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 14:21:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:23,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 14:21:23,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:24,119 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 186 proven. 21 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-07-12 14:21:24,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 2 proven. 199 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2022-07-12 14:21:26,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259066342] [2022-07-12 14:21:26,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259066342] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:26,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:26,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-12 14:21:26,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545671958] [2022-07-12 14:21:26,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:26,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 14:21:26,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 14:21:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:21:26,779 INFO L87 Difference]: Start difference. First operand 41881 states and 58744 transitions. Second operand has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2022-07-12 14:21:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:29,950 INFO L93 Difference]: Finished difference Result 83802 states and 117588 transitions. [2022-07-12 14:21:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 14:21:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 272 [2022-07-12 14:21:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:30,406 INFO L225 Difference]: With dead ends: 83802 [2022-07-12 14:21:30,407 INFO L226 Difference]: Without dead ends: 41898 [2022-07-12 14:21:30,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-07-12 14:21:30,491 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 24 mSDsluCounter, 22462 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 24714 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:30,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 24714 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 14:21:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41898 states. [2022-07-12 14:21:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41898 to 41898. [2022-07-12 14:21:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41898 states, 29239 states have (on average 1.3128355962926228) internal successors, (38386), 29671 states have internal predecessors, (38386), 10124 states have call successors, (10124), 2535 states have call predecessors, (10124), 2534 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-12 14:21:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41898 states to 41898 states and 58761 transitions. [2022-07-12 14:21:31,918 INFO L78 Accepts]: Start accepts. Automaton has 41898 states and 58761 transitions. Word has length 272 [2022-07-12 14:21:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:31,918 INFO L495 AbstractCegarLoop]: Abstraction has 41898 states and 58761 transitions. [2022-07-12 14:21:31,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2022-07-12 14:21:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 41898 states and 58761 transitions. [2022-07-12 14:21:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 14:21:31,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:31,924 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:31,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:32,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:32,142 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:32,142 INFO L85 PathProgramCache]: Analyzing trace with hash -230043603, now seen corresponding path program 2 times [2022-07-12 14:21:32,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:32,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207354123] [2022-07-12 14:21:32,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:21:32,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:32,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:32,145 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:32,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 14:21:33,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:21:33,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:21:33,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:21:33,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-12 14:21:33,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:33,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:33,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207354123] [2022-07-12 14:21:33,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207354123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:33,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:33,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 14:21:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590166630] [2022-07-12 14:21:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:33,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:21:33,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:21:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:21:33,321 INFO L87 Difference]: Start difference. First operand 41898 states and 58761 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 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 14:21:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:33,903 INFO L93 Difference]: Finished difference Result 42541 states and 59785 transitions. [2022-07-12 14:21:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:21:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 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 274 [2022-07-12 14:21:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:34,083 INFO L225 Difference]: With dead ends: 42541 [2022-07-12 14:21:34,083 INFO L226 Difference]: Without dead ends: 42538 [2022-07-12 14:21:34,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:21:34,107 INFO L413 NwaCegarLoop]: 2281 mSDtfsCounter, 25 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:34,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 9091 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:21:34,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42538 states. [2022-07-12 14:21:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42538 to 41962. [2022-07-12 14:21:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41962 states, 29287 states have (on average 1.3117765561511934) internal successors, (38418), 29719 states have internal predecessors, (38418), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-12 14:21:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41962 states to 41962 states and 58793 transitions. [2022-07-12 14:21:35,459 INFO L78 Accepts]: Start accepts. Automaton has 41962 states and 58793 transitions. Word has length 274 [2022-07-12 14:21:35,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:35,459 INFO L495 AbstractCegarLoop]: Abstraction has 41962 states and 58793 transitions. [2022-07-12 14:21:35,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 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 14:21:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 41962 states and 58793 transitions. [2022-07-12 14:21:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-12 14:21:35,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:35,469 INFO L195 NwaCegarLoop]: trace histogram [26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 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 14:21:35,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-12 14:21:35,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:35,684 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash 311960414, now seen corresponding path program 1 times [2022-07-12 14:21:35,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:35,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374128441] [2022-07-12 14:21:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:35,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:35,687 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:35,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 14:21:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:37,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 14:21:37,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 286 proven. 28 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-07-12 14:21:38,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2022-07-12 14:21:41,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:41,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374128441] [2022-07-12 14:21:41,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374128441] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:41,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:41,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-07-12 14:21:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306669788] [2022-07-12 14:21:41,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:41,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-12 14:21:41,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:41,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-12 14:21:41,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-07-12 14:21:41,402 INFO L87 Difference]: Start difference. First operand 41962 states and 58793 transitions. Second operand has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 14:21:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:44,478 INFO L93 Difference]: Finished difference Result 83964 states and 117686 transitions. [2022-07-12 14:21:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 14:21:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 300 [2022-07-12 14:21:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:44,613 INFO L225 Difference]: With dead ends: 83964 [2022-07-12 14:21:44,613 INFO L226 Difference]: Without dead ends: 41979 [2022-07-12 14:21:44,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-07-12 14:21:44,693 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 32 mSDsluCounter, 22461 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24713 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:44,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24713 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 14:21:44,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41979 states. [2022-07-12 14:21:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41979 to 41979. [2022-07-12 14:21:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41979 states, 29304 states have (on average 1.3115956865956866) internal successors, (38435), 29736 states have internal predecessors, (38435), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-12 14:21:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41979 states to 41979 states and 58810 transitions. [2022-07-12 14:21:45,928 INFO L78 Accepts]: Start accepts. Automaton has 41979 states and 58810 transitions. Word has length 300 [2022-07-12 14:21:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:45,929 INFO L495 AbstractCegarLoop]: Abstraction has 41979 states and 58810 transitions. [2022-07-12 14:21:45,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-12 14:21:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 41979 states and 58810 transitions. [2022-07-12 14:21:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-12 14:21:45,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:45,943 INFO L195 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 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 14:21:45,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:46,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:46,144 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1283115942, now seen corresponding path program 2 times [2022-07-12 14:21:46,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:46,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008430871] [2022-07-12 14:21:46,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:21:46,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:46,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:46,147 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:46,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 14:21:47,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:21:47,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:21:47,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:21:47,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-07-12 14:21:47,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:47,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:47,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008430871] [2022-07-12 14:21:47,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008430871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:47,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:47,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 14:21:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362474117] [2022-07-12 14:21:47,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:47,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 14:21:47,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:47,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 14:21:47,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 14:21:47,537 INFO L87 Difference]: Start difference. First operand 41979 states and 58810 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 14:21:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:51,465 INFO L93 Difference]: Finished difference Result 138799 states and 204462 transitions. [2022-07-12 14:21:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 14:21:51,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 302 [2022-07-12 14:21:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:51,880 INFO L225 Difference]: With dead ends: 138799 [2022-07-12 14:21:51,880 INFO L226 Difference]: Without dead ends: 96873 [2022-07-12 14:21:52,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 14:21:52,013 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 4426 mSDsluCounter, 17225 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 21560 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1595 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:52,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 21560 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1595 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 14:21:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96873 states. [2022-07-12 14:21:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96873 to 42059. [2022-07-12 14:21:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42059 states, 29384 states have (on average 1.3112918595153826) internal successors, (38531), 29816 states have internal predecessors, (38531), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-12 14:21:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42059 states to 42059 states and 58906 transitions. [2022-07-12 14:21:54,153 INFO L78 Accepts]: Start accepts. Automaton has 42059 states and 58906 transitions. Word has length 302 [2022-07-12 14:21:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:54,154 INFO L495 AbstractCegarLoop]: Abstraction has 42059 states and 58906 transitions. [2022-07-12 14:21:54,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 14:21:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 42059 states and 58906 transitions. [2022-07-12 14:21:54,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-12 14:21:54,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:54,164 INFO L195 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 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 14:21:54,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:54,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:54,380 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash 696309928, now seen corresponding path program 1 times [2022-07-12 14:21:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:54,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234384609] [2022-07-12 14:21:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:54,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:54,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:54,383 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:54,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 14:21:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:57,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2849 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:21:57,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-07-12 14:21:57,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:57,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:57,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234384609] [2022-07-12 14:21:57,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234384609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:57,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:57,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:21:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87034916] [2022-07-12 14:21:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:57,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:21:57,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:21:57,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:21:57,519 INFO L87 Difference]: Start difference. First operand 42059 states and 58906 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:21:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:59,302 INFO L93 Difference]: Finished difference Result 113951 states and 158938 transitions. [2022-07-12 14:21:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:21:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 302 [2022-07-12 14:21:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:59,566 INFO L225 Difference]: With dead ends: 113951 [2022-07-12 14:21:59,566 INFO L226 Difference]: Without dead ends: 71945 [2022-07-12 14:21:59,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 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 14:21:59,669 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 1833 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:59,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 5509 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:21:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71945 states. [2022-07-12 14:22:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71945 to 71846. [2022-07-12 14:22:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71846 states, 50411 states have (on average 1.309793497450953) internal successors, (66028), 51225 states have internal predecessors, (66028), 16873 states have call successors, (16873), 4562 states have call predecessors, (16873), 4561 states have return successors, (17064), 16684 states have call predecessors, (17064), 16872 states have call successors, (17064) [2022-07-12 14:22:01,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71846 states to 71846 states and 99965 transitions. [2022-07-12 14:22:01,880 INFO L78 Accepts]: Start accepts. Automaton has 71846 states and 99965 transitions. Word has length 302 [2022-07-12 14:22:01,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:01,880 INFO L495 AbstractCegarLoop]: Abstraction has 71846 states and 99965 transitions. [2022-07-12 14:22:01,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 14:22:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 71846 states and 99965 transitions. [2022-07-12 14:22:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-07-12 14:22:01,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:01,890 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:01,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-12 14:22:02,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:22:02,104 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:02,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1111120296, now seen corresponding path program 1 times [2022-07-12 14:22:02,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:22:02,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570677123] [2022-07-12 14:22:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:02,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:22:02,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:22:02,107 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:22:02,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 14:22:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:05,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:22:05,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-12 14:22:05,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:22:05,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:22:05,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570677123] [2022-07-12 14:22:05,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570677123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:22:05,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:22:05,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:22:05,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337005273] [2022-07-12 14:22:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:22:05,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:22:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:22:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:22:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:22:05,084 INFO L87 Difference]: Start difference. First operand 71846 states and 99965 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 14:22:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:22:07,011 INFO L93 Difference]: Finished difference Result 144919 states and 201787 transitions. [2022-07-12 14:22:07,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:22:07,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 343 [2022-07-12 14:22:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:22:07,382 INFO L225 Difference]: With dead ends: 144919 [2022-07-12 14:22:07,383 INFO L226 Difference]: Without dead ends: 73126 [2022-07-12 14:22:07,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 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 14:22:07,595 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 24 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:22:07,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4507 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:22:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73126 states. [2022-07-12 14:22:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73126 to 72870. [2022-07-12 14:22:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72870 states, 51371 states have (on average 1.3127250783515991) internal successors, (67436), 52185 states have internal predecessors, (67436), 16937 states have call successors, (16937), 4562 states have call predecessors, (16937), 4561 states have return successors, (17128), 16748 states have call predecessors, (17128), 16936 states have call successors, (17128) [2022-07-12 14:22:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72870 states to 72870 states and 101501 transitions. [2022-07-12 14:22:09,954 INFO L78 Accepts]: Start accepts. Automaton has 72870 states and 101501 transitions. Word has length 343 [2022-07-12 14:22:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:09,955 INFO L495 AbstractCegarLoop]: Abstraction has 72870 states and 101501 transitions. [2022-07-12 14:22:09,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 14:22:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 72870 states and 101501 transitions. [2022-07-12 14:22:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-07-12 14:22:09,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:09,966 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:10,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 14:22:10,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:22:10,184 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash -65640987, now seen corresponding path program 1 times [2022-07-12 14:22:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:22:10,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327892617] [2022-07-12 14:22:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:10,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:22:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:22:10,187 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:22:10,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 14:22:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:13,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 14:22:13,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:13,696 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 148 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-12 14:22:13,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:22:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2022-07-12 14:22:13,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:22:13,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327892617] [2022-07-12 14:22:13,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327892617] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:22:13,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:22:13,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 14:22:13,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188593609] [2022-07-12 14:22:13,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:22:13,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:22:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:22:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:22:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:22:13,967 INFO L87 Difference]: Start difference. First operand 72870 states and 101501 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-12 14:22:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:22:16,181 INFO L93 Difference]: Finished difference Result 147223 states and 205115 transitions. [2022-07-12 14:22:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:22:16,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 355 [2022-07-12 14:22:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:22:16,649 INFO L225 Difference]: With dead ends: 147223 [2022-07-12 14:22:16,649 INFO L226 Difference]: Without dead ends: 74406 [2022-07-12 14:22:16,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:22:16,804 INFO L413 NwaCegarLoop]: 2275 mSDtfsCounter, 73 mSDsluCounter, 8975 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 11250 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:22:16,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 11250 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:22:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74406 states. [2022-07-12 14:22:18,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74406 to 74150. [2022-07-12 14:22:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74150 states, 52587 states have (on average 1.31401296898473) internal successors, (69100), 53401 states have internal predecessors, (69100), 17001 states have call successors, (17001), 4562 states have call predecessors, (17001), 4561 states have return successors, (17192), 16812 states have call predecessors, (17192), 17000 states have call successors, (17192) [2022-07-12 14:22:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74150 states to 74150 states and 103293 transitions. [2022-07-12 14:22:19,202 INFO L78 Accepts]: Start accepts. Automaton has 74150 states and 103293 transitions. Word has length 355 [2022-07-12 14:22:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:19,203 INFO L495 AbstractCegarLoop]: Abstraction has 74150 states and 103293 transitions. [2022-07-12 14:22:19,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-12 14:22:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 74150 states and 103293 transitions. [2022-07-12 14:22:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-12 14:22:19,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:19,214 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:19,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-12 14:22:19,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:22:19,428 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:19,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1651194354, now seen corresponding path program 2 times [2022-07-12 14:22:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:22:19,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091040325] [2022-07-12 14:22:19,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:22:19,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:22:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:22:19,431 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:22:19,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 14:22:20,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:22:20,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:22:20,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:22:20,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2022-07-12 14:22:20,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:22:21,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:22:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091040325] [2022-07-12 14:22:21,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091040325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:22:21,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:22:21,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:22:21,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445720366] [2022-07-12 14:22:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:22:21,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:22:21,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:22:21,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:22:21,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:22:21,004 INFO L87 Difference]: Start difference. First operand 74150 states and 103293 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-12 14:22:23,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:22:23,591 INFO L93 Difference]: Finished difference Result 148273 states and 206927 transitions. [2022-07-12 14:22:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:22:23,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 367 [2022-07-12 14:22:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:22:23,896 INFO L225 Difference]: With dead ends: 148273 [2022-07-12 14:22:23,897 INFO L226 Difference]: Without dead ends: 74176 [2022-07-12 14:22:24,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:22:24,072 INFO L413 NwaCegarLoop]: 2935 mSDtfsCounter, 1069 mSDsluCounter, 4558 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:22:24,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 7493 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 14:22:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74176 states. [2022-07-12 14:22:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74176 to 71862. [2022-07-12 14:22:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71862 states, 50971 states have (on average 1.3158070275254556) internal successors, (67068), 51753 states have internal predecessors, (67068), 16409 states have call successors, (16409), 4482 states have call predecessors, (16409), 4481 states have return successors, (16576), 16236 states have call predecessors, (16576), 16408 states have call successors, (16576) [2022-07-12 14:22:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71862 states to 71862 states and 100053 transitions. [2022-07-12 14:22:26,527 INFO L78 Accepts]: Start accepts. Automaton has 71862 states and 100053 transitions. Word has length 367 [2022-07-12 14:22:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:26,529 INFO L495 AbstractCegarLoop]: Abstraction has 71862 states and 100053 transitions. [2022-07-12 14:22:26,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-12 14:22:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 71862 states and 100053 transitions. [2022-07-12 14:22:26,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-07-12 14:22:26,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:26,540 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:26,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-12 14:22:26,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:22:26,755 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:26,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:26,755 INFO L85 PathProgramCache]: Analyzing trace with hash 906091915, now seen corresponding path program 1 times [2022-07-12 14:22:26,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:22:26,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953314263] [2022-07-12 14:22:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:26,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:22:26,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:22:26,759 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:22:26,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process