./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:19:09,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:19:09,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:19:09,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:19:09,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:19:09,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:19:09,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:19:09,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:19:09,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:19:09,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:19:09,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:19:09,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:19:09,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:19:09,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:19:09,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:19:09,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:19:09,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:19:09,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:19:09,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:19:09,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:19:09,998 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:19:10,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:19:10,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:19:10,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:19:10,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:19:10,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:19:10,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:19:10,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:19:10,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:19:10,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:19:10,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:19:10,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:19:10,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:19:10,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:19:10,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:19:10,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:19:10,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:19:10,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:19:10,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:19:10,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:19:10,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:19:10,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:19:10,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:19:10,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:19:10,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:19:10,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:19:10,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:19:10,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:19:10,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:19:10,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:19:10,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:19:10,064 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:19:10,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:19:10,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:19:10,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:19:10,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:19:10,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:19:10,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:19:10,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:19:10,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:19:10,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:19:10,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:19:10,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:19:10,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:19:10,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:19:10,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:19:10,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:19:10,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:19:10,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:19:10,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:19:10,073 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:19:10,073 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:19:10,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:19:10,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-20 01:19:10,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:19:10,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:19:10,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:19:10,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:19:10,347 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:19:10,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-20 01:19:10,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621c351e7/7f0b6bca968e42f6870d3dbbae8c697a/FLAG5680e9c84 [2022-07-20 01:19:11,265 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:19:11,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-20 01:19:11,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621c351e7/7f0b6bca968e42f6870d3dbbae8c697a/FLAG5680e9c84 [2022-07-20 01:19:11,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621c351e7/7f0b6bca968e42f6870d3dbbae8c697a [2022-07-20 01:19:11,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:19:11,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:19:11,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:19:11,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:19:11,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:19:11,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:19:11" (1/1) ... [2022-07-20 01:19:11,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d46afdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:11, skipping insertion in model container [2022-07-20 01:19:11,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:19:11" (1/1) ... [2022-07-20 01:19:11,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:19:11,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:19:14,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-20 01:19:14,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:19:14,638 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:19:14,824 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: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] 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:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:19:14,829 INFO L158 Benchmark]: Toolchain (without parser) took 3445.13ms. Allocated memory was 100.7MB in the beginning and 142.6MB in the end (delta: 41.9MB). Free memory was 62.9MB in the beginning and 55.6MB in the end (delta: 7.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-07-20 01:19:14,830 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:19:14,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3441.48ms. Allocated memory was 100.7MB in the beginning and 142.6MB in the end (delta: 41.9MB). Free memory was 62.9MB in the beginning and 55.6MB in the end (delta: 7.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-07-20 01:19:14,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3441.48ms. Allocated memory was 100.7MB in the beginning and 142.6MB in the end (delta: 41.9MB). Free memory was 62.9MB in the beginning and 55.6MB in the end (delta: 7.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:19:16,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:19:16,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:19:16,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:19:16,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:19:16,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:19:16,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:19:16,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:19:16,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:19:16,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:19:16,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:19:16,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:19:16,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:19:16,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:19:16,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:19:16,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:19:16,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:19:16,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:19:16,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:19:16,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:19:16,793 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:19:16,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:19:16,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:19:16,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:19:16,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:19:16,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:19:16,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:19:16,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:19:16,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:19:16,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:19:16,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:19:16,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:19:16,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:19:16,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:19:16,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:19:16,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:19:16,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:19:16,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:19:16,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:19:16,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:19:16,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:19:16,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:19:16,819 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:19:16,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:19:16,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:19:16,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:19:16,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:19:16,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:19:16,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:19:16,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:19:16,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:19:16,859 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:19:16,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:19:16,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:19:16,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:19:16,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:19:16,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:19:16,872 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:19:16,872 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:19:16,872 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:19:16,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:19:16,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:19:16,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:19:16,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:19:16,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:19:16,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:19:16,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:19:16,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:19:16,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:19:16,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:19:16,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:19:16,875 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:19:16,875 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:19:16,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:19:16,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:19:16,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:19:16,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-20 01:19:17,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:19:17,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:19:17,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:19:17,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:19:17,175 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:19:17,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-20 01:19:17,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1ef5b118/fc4c0becb20041e5a0c7bb3ec57edcd9/FLAG7ae684b7f [2022-07-20 01:19:18,169 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:19:18,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-20 01:19:18,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1ef5b118/fc4c0becb20041e5a0c7bb3ec57edcd9/FLAG7ae684b7f [2022-07-20 01:19:18,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1ef5b118/fc4c0becb20041e5a0c7bb3ec57edcd9 [2022-07-20 01:19:18,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:19:18,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:19:18,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:19:18,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:19:18,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:19:18,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:19:18" (1/1) ... [2022-07-20 01:19:18,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6394bf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:18, skipping insertion in model container [2022-07-20 01:19:18,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:19:18" (1/1) ... [2022-07-20 01:19:18,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:19:18,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:19:21,699 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-20 01:19:21,723 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-20 01:19:22,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-20 01:19:22,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:19:22,132 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:19:22,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:19:22,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-20 01:19:22,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:19:22,655 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:19:22,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-20 01:19:22,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:19:23,172 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:19:23,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23 WrapperNode [2022-07-20 01:19:23,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:19:23,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:19:23,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:19:23,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:19:23,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,425 INFO L137 Inliner]: procedures = 424, calls = 2551, calls flagged for inlining = 208, calls inlined = 189, statements flattened = 5544 [2022-07-20 01:19:23,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:19:23,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:19:23,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:19:23,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:19:23,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:19:23,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:19:23,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:19:23,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:19:23,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (1/1) ... [2022-07-20 01:19:23,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:19:23,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:19:23,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 01:19:23,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 01:19:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-20 01:19:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-20 01:19:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 01:19:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 01:19:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:19:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:19:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 01:19:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 01:19:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2022-07-20 01:19:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2022-07-20 01:19:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-20 01:19:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-20 01:19:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:19:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:19:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:19:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:19:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-20 01:19:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-20 01:19:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 01:19:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 01:19:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-20 01:19:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-20 01:19:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-20 01:19:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-20 01:19:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-20 01:19:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-20 01:19:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 01:19:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 01:19:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 01:19:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 01:19:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-20 01:19:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-20 01:19:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-20 01:19:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-20 01:19:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 01:19:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 01:19:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 01:19:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 01:19:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-20 01:19:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-20 01:19:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2022-07-20 01:19:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2022-07-20 01:19:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-20 01:19:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-20 01:19:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-20 01:19:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-20 01:19:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 01:19:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 01:19:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 01:19:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 01:19:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 01:19:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 01:19:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-20 01:19:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-20 01:19:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:19:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:19:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 01:19:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 01:19:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:19:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 01:19:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 01:19:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 01:19:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:19:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:19:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-20 01:19:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-20 01:19:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:19:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-20 01:19:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-20 01:19:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-20 01:19:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-20 01:19:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:19:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:19:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-20 01:19:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-20 01:19:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 01:19:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 01:19:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 01:19:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 01:19:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2022-07-20 01:19:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2022-07-20 01:19:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-20 01:19:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-20 01:19:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 01:19:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 01:19:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 01:19:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 01:19:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:19:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:19:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:19:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:19:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-20 01:19:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-20 01:19:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 01:19:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 01:19:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-20 01:19:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-20 01:19:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 01:19:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 01:19:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-20 01:19:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-20 01:19:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-20 01:19:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-20 01:19:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:19:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:19:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-20 01:19:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-20 01:19:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-20 01:19:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-20 01:19:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:19:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-20 01:19:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-20 01:19:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-20 01:19:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-20 01:19:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:19:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2022-07-20 01:19:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2022-07-20 01:19:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-20 01:19:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-20 01:19:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 01:19:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 01:19:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-20 01:19:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-20 01:19:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-20 01:19:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-20 01:19:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-20 01:19:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-20 01:19:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-20 01:19:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 01:19:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 01:19:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 01:19:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 01:19:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 01:19:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 01:19:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-20 01:19:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-20 01:19:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-20 01:19:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-20 01:19:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-20 01:19:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-20 01:19:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-20 01:19:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-20 01:19:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2022-07-20 01:19:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2022-07-20 01:19:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 01:19:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 01:19:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 01:19:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 01:19:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 01:19:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:19:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:19:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-20 01:19:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-20 01:19:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:19:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 01:19:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 01:19:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:19:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-20 01:19:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:19:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:19:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 01:19:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 01:19:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-20 01:19:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-20 01:19:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-20 01:19:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-20 01:19:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 01:19:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 01:19:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-20 01:19:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-20 01:19:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:19:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:19:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-20 01:19:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-20 01:19:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 01:19:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 01:19:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-20 01:19:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-20 01:19:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 01:19:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 01:19:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-20 01:19:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-20 01:19:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:19:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:19:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:19:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:19:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 01:19:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 01:19:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 01:19:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 01:19:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:19:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:19:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:19:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 01:19:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:19:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-20 01:19:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:19:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:19:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:19:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:19:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-20 01:19:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-20 01:19:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 01:19:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 01:19:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:19:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:19:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 01:19:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 01:19:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-20 01:19:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-20 01:19:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 01:19:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 01:19:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-20 01:19:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-20 01:19:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2022-07-20 01:19:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2022-07-20 01:19:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:19:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:19:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-20 01:19:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-20 01:19:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-20 01:19:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-20 01:19:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-20 01:19:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-20 01:19:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 01:19:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 01:19:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-20 01:19:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-20 01:19:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-20 01:19:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-20 01:19:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:19:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:19:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-20 01:19:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-20 01:19:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-20 01:19:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:19:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:19:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-20 01:19:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-20 01:19:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-20 01:19:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-20 01:19:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:19:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:19:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-20 01:19:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-20 01:19:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 01:19:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 01:19:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-20 01:19:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-20 01:19:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-20 01:19:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-20 01:19:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-20 01:19:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-20 01:19:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-20 01:19:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-20 01:19:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-20 01:19:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-20 01:19:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 01:19:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 01:19:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 01:19:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 01:19:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-20 01:19:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-20 01:19:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-20 01:19:24,713 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:19:24,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:19:25,168 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:20:06,980 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:20:07,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:20:07,003 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:20:07,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:20:07 BoogieIcfgContainer [2022-07-20 01:20:07,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:20:07,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:20:07,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:20:07,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:20:07,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:19:18" (1/3) ... [2022-07-20 01:20:07,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492e9ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:20:07, skipping insertion in model container [2022-07-20 01:20:07,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:19:23" (2/3) ... [2022-07-20 01:20:07,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492e9ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:20:07, skipping insertion in model container [2022-07-20 01:20:07,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:20:07" (3/3) ... [2022-07-20 01:20:07,017 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-20 01:20:07,031 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:20:07,031 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:20:07,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:20:07,153 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@3ee45efc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7ae96a14 [2022-07-20 01:20:07,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:20:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) [2022-07-20 01:20:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-20 01:20:07,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:07,215 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:07,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:07,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:07,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1836044323, now seen corresponding path program 1 times [2022-07-20 01:20:07,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:07,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136262852] [2022-07-20 01:20:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:07,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:07,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 01:20:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:09,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-20 01:20:09,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-20 01:20:09,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:09,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:09,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136262852] [2022-07-20 01:20:09,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136262852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:09,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:09,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:20:09,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910826172] [2022-07-20 01:20:09,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:09,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 01:20:09,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:09,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 01:20:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 01:20:09,189 INFO L87 Difference]: Start difference. First operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:20:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:09,397 INFO L93 Difference]: Finished difference Result 4567 states and 6529 transitions. [2022-07-20 01:20:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 01:20:09,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 211 [2022-07-20 01:20:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:09,442 INFO L225 Difference]: With dead ends: 4567 [2022-07-20 01:20:09,442 INFO L226 Difference]: Without dead ends: 2260 [2022-07-20 01:20:09,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 01:20:09,474 INFO L413 NwaCegarLoop]: 3239 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, 3239 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:09,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:20:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-07-20 01:20:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2022-07-20 01:20:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1519 states have (on average 1.2955892034233047) internal successors, (1968), 1563 states have internal predecessors, (1968), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-20 01:20:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3199 transitions. [2022-07-20 01:20:09,704 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3199 transitions. Word has length 211 [2022-07-20 01:20:09,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:09,706 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3199 transitions. [2022-07-20 01:20:09,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:20:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3199 transitions. [2022-07-20 01:20:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-20 01:20:09,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:09,728 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:09,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:09,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:09,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:09,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash -191787369, now seen corresponding path program 1 times [2022-07-20 01:20:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:09,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207906173] [2022-07-20 01:20:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:09,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:09,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:09,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:09,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 01:20:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:11,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 01:20:11,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-20 01:20:12,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:12,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:12,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207906173] [2022-07-20 01:20:12,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207906173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:12,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:12,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:20:12,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120029547] [2022-07-20 01:20:12,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:12,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:20:12,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:20:12,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:20:12,213 INFO L87 Difference]: Start difference. First operand 2260 states and 3199 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:20:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:12,650 INFO L93 Difference]: Finished difference Result 4510 states and 6413 transitions. [2022-07-20 01:20:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 01:20:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 211 [2022-07-20 01:20:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:12,668 INFO L225 Difference]: With dead ends: 4510 [2022-07-20 01:20:12,669 INFO L226 Difference]: Without dead ends: 2261 [2022-07-20 01:20:12,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:12,683 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 6 mSDsluCounter, 12760 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15954 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:12,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15954 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:20:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-07-20 01:20:12,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2022-07-20 01:20:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1520 states have (on average 1.2953947368421053) internal successors, (1969), 1564 states have internal predecessors, (1969), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-20 01:20:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3200 transitions. [2022-07-20 01:20:12,771 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3200 transitions. Word has length 211 [2022-07-20 01:20:12,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:12,773 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3200 transitions. [2022-07-20 01:20:12,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:20:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3200 transitions. [2022-07-20 01:20:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-20 01:20:12,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:12,781 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 01:20:12,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:13,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:13,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1519484747, now seen corresponding path program 1 times [2022-07-20 01:20:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:13,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142913358] [2022-07-20 01:20:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:13,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:13,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:13,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:13,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 01:20:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:15,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 01:20:15,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-20 01:20:15,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:20:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-20 01:20:16,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:16,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142913358] [2022-07-20 01:20:16,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142913358] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:20:16,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:20:16,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 01:20:16,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475023772] [2022-07-20 01:20:16,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:20:16,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:20:16,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:16,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:20:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:20:16,238 INFO L87 Difference]: Start difference. First operand 2261 states and 3200 transitions. Second operand has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-20 01:20:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:17,021 INFO L93 Difference]: Finished difference Result 4512 states and 6415 transitions. [2022-07-20 01:20:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:20:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 213 [2022-07-20 01:20:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:17,042 INFO L225 Difference]: With dead ends: 4512 [2022-07-20 01:20:17,042 INFO L226 Difference]: Without dead ends: 2262 [2022-07-20 01:20:17,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-20 01:20:17,060 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 7 mSDsluCounter, 19138 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22332 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:17,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22332 Invalid, 65 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:20:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-07-20 01:20:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-07-20 01:20:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1521 states have (on average 1.2952005259697568) internal successors, (1970), 1565 states have internal predecessors, (1970), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-20 01:20:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3201 transitions. [2022-07-20 01:20:17,159 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3201 transitions. Word has length 213 [2022-07-20 01:20:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:17,160 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3201 transitions. [2022-07-20 01:20:17,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-20 01:20:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3201 transitions. [2022-07-20 01:20:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-20 01:20:17,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:17,170 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:17,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:17,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:17,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:17,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:17,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1053476375, now seen corresponding path program 2 times [2022-07-20 01:20:17,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:17,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479099367] [2022-07-20 01:20:17,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:20:17,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:17,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:17,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:17,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 01:20:18,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:20:18,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:20:18,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 01:20:18,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-20 01:20:18,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:18,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:18,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479099367] [2022-07-20 01:20:18,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479099367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:18,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:18,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:20:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637198812] [2022-07-20 01:20:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:18,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:20:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:20:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:20:18,835 INFO L87 Difference]: Start difference. First operand 2262 states and 3201 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 01:20:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:19,529 INFO L93 Difference]: Finished difference Result 4755 states and 6787 transitions. [2022-07-20 01:20:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:20:19,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 215 [2022-07-20 01:20:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:19,550 INFO L225 Difference]: With dead ends: 4755 [2022-07-20 01:20:19,550 INFO L226 Difference]: Without dead ends: 2520 [2022-07-20 01:20:19,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:20:19,567 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 369 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 10193 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:19,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 10193 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 01:20:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-07-20 01:20:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2264. [2022-07-20 01:20:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1523 states have (on average 1.2948128693368353) internal successors, (1972), 1567 states have internal predecessors, (1972), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-20 01:20:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3203 transitions. [2022-07-20 01:20:19,664 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3203 transitions. Word has length 215 [2022-07-20 01:20:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:19,665 INFO L495 AbstractCegarLoop]: Abstraction has 2264 states and 3203 transitions. [2022-07-20 01:20:19,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 01:20:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3203 transitions. [2022-07-20 01:20:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-20 01:20:19,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:19,675 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:19,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:19,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1356599653, now seen corresponding path program 1 times [2022-07-20 01:20:19,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:19,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877931854] [2022-07-20 01:20:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:19,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:19,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:19,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:19,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 01:20:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:22,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:20:22,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-20 01:20:22,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:20:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-20 01:20:23,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:23,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877931854] [2022-07-20 01:20:23,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877931854] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:20:23,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:20:23,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-20 01:20:23,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236976243] [2022-07-20 01:20:23,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:20:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-20 01:20:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-20 01:20:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-20 01:20:23,673 INFO L87 Difference]: Start difference. First operand 2264 states and 3203 transitions. Second operand has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-20 01:20:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:24,336 INFO L93 Difference]: Finished difference Result 4518 states and 6421 transitions. [2022-07-20 01:20:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 01:20:24,337 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 221 [2022-07-20 01:20:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:24,355 INFO L225 Difference]: With dead ends: 4518 [2022-07-20 01:20:24,356 INFO L226 Difference]: Without dead ends: 2265 [2022-07-20 01:20:24,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:20:24,370 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 12 mSDsluCounter, 19143 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 22337 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:24,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 22337 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:20:24,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-07-20 01:20:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2265. [2022-07-20 01:20:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1524 states have (on average 1.2946194225721785) internal successors, (1973), 1568 states have internal predecessors, (1973), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-20 01:20:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3204 transitions. [2022-07-20 01:20:24,454 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3204 transitions. Word has length 221 [2022-07-20 01:20:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:24,454 INFO L495 AbstractCegarLoop]: Abstraction has 2265 states and 3204 transitions. [2022-07-20 01:20:24,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-20 01:20:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3204 transitions. [2022-07-20 01:20:24,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-20 01:20:24,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:24,464 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:24,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:24,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:24,682 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:24,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1811297457, now seen corresponding path program 2 times [2022-07-20 01:20:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:24,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447697247] [2022-07-20 01:20:24,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:20:24,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:24,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:24,687 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:24,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 01:20:26,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:20:26,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:20:26,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-20 01:20:26,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-07-20 01:20:26,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:26,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:26,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447697247] [2022-07-20 01:20:26,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447697247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:26,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:26,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:20:26,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263858768] [2022-07-20 01:20:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:26,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:20:26,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:20:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:26,593 INFO L87 Difference]: Start difference. First operand 2265 states and 3204 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:27,235 INFO L93 Difference]: Finished difference Result 4511 states and 6414 transitions. [2022-07-20 01:20:27,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 01:20:27,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-07-20 01:20:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:27,253 INFO L225 Difference]: With dead ends: 4511 [2022-07-20 01:20:27,253 INFO L226 Difference]: Without dead ends: 2273 [2022-07-20 01:20:27,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:20:27,267 INFO L413 NwaCegarLoop]: 3200 mSDtfsCounter, 2 mSDsluCounter, 19177 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22377 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:27,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22377 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:20:27,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-07-20 01:20:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-07-20 01:20:27,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1530 states have (on average 1.2934640522875818) internal successors, (1979), 1574 states have internal predecessors, (1979), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-20 01:20:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3222 transitions. [2022-07-20 01:20:27,349 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3222 transitions. Word has length 223 [2022-07-20 01:20:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:27,350 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3222 transitions. [2022-07-20 01:20:27,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:27,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3222 transitions. [2022-07-20 01:20:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-20 01:20:27,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:27,360 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 01:20:27,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-20 01:20:27,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:27,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash -886033841, now seen corresponding path program 1 times [2022-07-20 01:20:27,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:27,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892214649] [2022-07-20 01:20:27,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:27,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:27,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:27,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:27,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 01:20:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:29,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 01:20:29,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-07-20 01:20:30,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:20:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-20 01:20:31,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:31,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892214649] [2022-07-20 01:20:31,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892214649] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:20:31,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:20:31,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-20 01:20:31,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272751502] [2022-07-20 01:20:31,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:20:31,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 01:20:31,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:31,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 01:20:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:20:31,456 INFO L87 Difference]: Start difference. First operand 2273 states and 3222 transitions. Second operand has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-20 01:20:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:32,259 INFO L93 Difference]: Finished difference Result 4536 states and 6459 transitions. [2022-07-20 01:20:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 01:20:32,260 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 235 [2022-07-20 01:20:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:32,275 INFO L225 Difference]: With dead ends: 4536 [2022-07-20 01:20:32,275 INFO L226 Difference]: Without dead ends: 2274 [2022-07-20 01:20:32,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-20 01:20:32,289 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 11 mSDsluCounter, 22326 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25520 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:32,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25520 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 01:20:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-07-20 01:20:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2022-07-20 01:20:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1531 states have (on average 1.2932723709993468) internal successors, (1980), 1575 states have internal predecessors, (1980), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-20 01:20:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3223 transitions. [2022-07-20 01:20:32,395 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3223 transitions. Word has length 235 [2022-07-20 01:20:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:32,396 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3223 transitions. [2022-07-20 01:20:32,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-20 01:20:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3223 transitions. [2022-07-20 01:20:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-20 01:20:32,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:32,430 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 01:20:32,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:32,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:32,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1388266419, now seen corresponding path program 2 times [2022-07-20 01:20:32,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:32,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344503866] [2022-07-20 01:20:32,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:20:32,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:32,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:32,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:32,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 01:20:33,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:20:33,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:20:33,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:33,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-20 01:20:33,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:33,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:33,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344503866] [2022-07-20 01:20:33,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344503866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:33,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:33,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:33,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853349695] [2022-07-20 01:20:33,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:33,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:33,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:33,818 INFO L87 Difference]: Start difference. First operand 2274 states and 3223 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:34,235 INFO L93 Difference]: Finished difference Result 4523 states and 6436 transitions. [2022-07-20 01:20:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 231 [2022-07-20 01:20:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:34,256 INFO L225 Difference]: With dead ends: 4523 [2022-07-20 01:20:34,256 INFO L226 Difference]: Without dead ends: 2276 [2022-07-20 01:20:34,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:34,270 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 1 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:34,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6391 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:20:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-07-20 01:20:34,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2275. [2022-07-20 01:20:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 1532 states have (on average 1.2930809399477807) internal successors, (1981), 1576 states have internal predecessors, (1981), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-20 01:20:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3224 transitions. [2022-07-20 01:20:34,352 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3224 transitions. Word has length 231 [2022-07-20 01:20:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:34,353 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 3224 transitions. [2022-07-20 01:20:34,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3224 transitions. [2022-07-20 01:20:34,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-20 01:20:34,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:34,365 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 01:20:34,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:34,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:34,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:34,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash -326695337, now seen corresponding path program 1 times [2022-07-20 01:20:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:34,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441547151] [2022-07-20 01:20:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:34,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:34,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:34,591 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:34,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 01:20:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:37,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:37,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-20 01:20:37,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:37,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:37,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441547151] [2022-07-20 01:20:37,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441547151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:37,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:37,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:37,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609504215] [2022-07-20 01:20:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:37,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:37,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:37,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:37,127 INFO L87 Difference]: Start difference. First operand 2275 states and 3224 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:37,703 INFO L93 Difference]: Finished difference Result 6426 states and 9103 transitions. [2022-07-20 01:20:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:37,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 239 [2022-07-20 01:20:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:37,730 INFO L225 Difference]: With dead ends: 6426 [2022-07-20 01:20:37,730 INFO L226 Difference]: Without dead ends: 4178 [2022-07-20 01:20:37,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:37,739 INFO L413 NwaCegarLoop]: 3713 mSDtfsCounter, 2776 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 6735 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:37,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 6735 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:20:37,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-07-20 01:20:37,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 4162. [2022-07-20 01:20:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 2795 states have (on average 1.2915921288014311) internal successors, (3610), 2881 states have internal predecessors, (3610), 1131 states have call successors, (1131), 232 states have call predecessors, (1131), 235 states have return successors, (1154), 1105 states have call predecessors, (1154), 1130 states have call successors, (1154) [2022-07-20 01:20:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5895 transitions. [2022-07-20 01:20:37,900 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5895 transitions. Word has length 239 [2022-07-20 01:20:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:37,900 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5895 transitions. [2022-07-20 01:20:37,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:20:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5895 transitions. [2022-07-20 01:20:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-07-20 01:20:37,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:37,917 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:38,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:38,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:38,132 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:38,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1204888151, now seen corresponding path program 1 times [2022-07-20 01:20:38,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:38,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762829199] [2022-07-20 01:20:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:38,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:38,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:38,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:38,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 01:20:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:40,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:40,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-20 01:20:40,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:40,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:40,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762829199] [2022-07-20 01:20:40,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762829199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:40,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:40,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:40,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357290806] [2022-07-20 01:20:40,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:40,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:40,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:40,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:40,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:40,836 INFO L87 Difference]: Start difference. First operand 4162 states and 5895 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:41,265 INFO L93 Difference]: Finished difference Result 12386 states and 17596 transitions. [2022-07-20 01:20:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 360 [2022-07-20 01:20:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:41,390 INFO L225 Difference]: With dead ends: 12386 [2022-07-20 01:20:41,391 INFO L226 Difference]: Without dead ends: 8251 [2022-07-20 01:20:41,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:41,410 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 3147 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:41,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 6979 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:20:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8251 states. [2022-07-20 01:20:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8248. [2022-07-20 01:20:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 5536 states have (on average 1.2922687861271676) internal successors, (7154), 5713 states have internal predecessors, (7154), 2247 states have call successors, (2247), 462 states have call predecessors, (2247), 464 states have return successors, (2302), 2186 states have call predecessors, (2302), 2246 states have call successors, (2302) [2022-07-20 01:20:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11703 transitions. [2022-07-20 01:20:41,782 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11703 transitions. Word has length 360 [2022-07-20 01:20:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:41,783 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 11703 transitions. [2022-07-20 01:20:41,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11703 transitions. [2022-07-20 01:20:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-20 01:20:41,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:41,805 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:41,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:42,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:42,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash 71382096, now seen corresponding path program 1 times [2022-07-20 01:20:42,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:42,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373860235] [2022-07-20 01:20:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:42,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:42,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:42,030 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:42,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 01:20:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:44,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:44,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-20 01:20:44,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:44,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:44,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373860235] [2022-07-20 01:20:44,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373860235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:44,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:44,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:44,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817444107] [2022-07-20 01:20:44,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:44,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:44,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:44,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:44,647 INFO L87 Difference]: Start difference. First operand 8248 states and 11703 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:45,155 INFO L93 Difference]: Finished difference Result 20588 states and 29255 transitions. [2022-07-20 01:20:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:45,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 361 [2022-07-20 01:20:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:45,236 INFO L225 Difference]: With dead ends: 20588 [2022-07-20 01:20:45,236 INFO L226 Difference]: Without dead ends: 12367 [2022-07-20 01:20:45,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:45,277 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3173 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:45,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:20:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-07-20 01:20:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 12364. [2022-07-20 01:20:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 8303 states have (on average 1.291340479344815) internal successors, (10722), 8566 states have internal predecessors, (10722), 3362 states have call successors, (3362), 692 states have call predecessors, (3362), 698 states have return successors, (3459), 3276 states have call predecessors, (3459), 3361 states have call successors, (3459) [2022-07-20 01:20:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 17543 transitions. [2022-07-20 01:20:45,792 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 17543 transitions. Word has length 361 [2022-07-20 01:20:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:45,795 INFO L495 AbstractCegarLoop]: Abstraction has 12364 states and 17543 transitions. [2022-07-20 01:20:45,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 17543 transitions. [2022-07-20 01:20:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-20 01:20:45,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:45,820 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:45,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:46,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:46,038 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:46,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1100248334, now seen corresponding path program 1 times [2022-07-20 01:20:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:46,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169280167] [2022-07-20 01:20:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:46,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:46,042 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:46,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 01:20:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:48,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:48,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-20 01:20:48,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:48,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:48,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169280167] [2022-07-20 01:20:48,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169280167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:48,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:48,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666653752] [2022-07-20 01:20:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:48,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:48,635 INFO L87 Difference]: Start difference. First operand 12364 states and 17543 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:49,262 INFO L93 Difference]: Finished difference Result 28816 states and 40937 transitions. [2022-07-20 01:20:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:49,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 356 [2022-07-20 01:20:49,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:49,355 INFO L225 Difference]: With dead ends: 28816 [2022-07-20 01:20:49,356 INFO L226 Difference]: Without dead ends: 16479 [2022-07-20 01:20:49,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:49,411 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3174 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:49,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:20:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2022-07-20 01:20:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16476. [2022-07-20 01:20:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16476 states, 11069 states have (on average 1.290721835757521) internal successors, (14287), 11418 states have internal predecessors, (14287), 4474 states have call successors, (4474), 922 states have call predecessors, (4474), 932 states have return successors, (4613), 4363 states have call predecessors, (4613), 4473 states have call successors, (4613) [2022-07-20 01:20:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16476 states to 16476 states and 23374 transitions. [2022-07-20 01:20:50,056 INFO L78 Accepts]: Start accepts. Automaton has 16476 states and 23374 transitions. Word has length 356 [2022-07-20 01:20:50,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:50,057 INFO L495 AbstractCegarLoop]: Abstraction has 16476 states and 23374 transitions. [2022-07-20 01:20:50,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:50,058 INFO L276 IsEmpty]: Start isEmpty. Operand 16476 states and 23374 transitions. [2022-07-20 01:20:50,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-07-20 01:20:50,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:50,088 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:50,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:50,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:50,316 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:50,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:50,316 INFO L85 PathProgramCache]: Analyzing trace with hash -911585011, now seen corresponding path program 1 times [2022-07-20 01:20:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:50,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139361722] [2022-07-20 01:20:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:50,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:50,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:50,321 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:50,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 01:20:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:53,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:53,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-20 01:20:53,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:53,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:53,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139361722] [2022-07-20 01:20:53,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139361722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:53,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:53,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700327580] [2022-07-20 01:20:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:53,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:53,417 INFO L87 Difference]: Start difference. First operand 16476 states and 23374 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-20 01:20:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:54,007 INFO L93 Difference]: Finished difference Result 32909 states and 46689 transitions. [2022-07-20 01:20:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:54,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 428 [2022-07-20 01:20:54,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:54,117 INFO L225 Difference]: With dead ends: 32909 [2022-07-20 01:20:54,117 INFO L226 Difference]: Without dead ends: 16460 [2022-07-20 01:20:54,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:54,190 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 3183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:54,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 3194 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16460 states. [2022-07-20 01:20:54,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16460 to 16460. [2022-07-20 01:20:54,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16460 states, 11061 states have (on average 1.2902088418768647) internal successors, (14271), 11410 states have internal predecessors, (14271), 4466 states have call successors, (4466), 922 states have call predecessors, (4466), 932 states have return successors, (4605), 4355 states have call predecessors, (4605), 4465 states have call successors, (4605) [2022-07-20 01:20:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16460 states to 16460 states and 23342 transitions. [2022-07-20 01:20:54,930 INFO L78 Accepts]: Start accepts. Automaton has 16460 states and 23342 transitions. Word has length 428 [2022-07-20 01:20:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:54,931 INFO L495 AbstractCegarLoop]: Abstraction has 16460 states and 23342 transitions. [2022-07-20 01:20:54,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-20 01:20:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 16460 states and 23342 transitions. [2022-07-20 01:20:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-20 01:20:55,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:55,066 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:20:55,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:55,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:55,273 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:55,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:55,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2132796789, now seen corresponding path program 1 times [2022-07-20 01:20:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:55,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288917664] [2022-07-20 01:20:55,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:55,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:55,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:55,279 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:55,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 01:20:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:57,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:20:57,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-20 01:20:58,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:58,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:58,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288917664] [2022-07-20 01:20:58,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288917664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:58,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:58,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:20:58,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074823658] [2022-07-20 01:20:58,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:58,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:20:58,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:20:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:58,080 INFO L87 Difference]: Start difference. First operand 16460 states and 23342 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:20:58,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:58,893 INFO L93 Difference]: Finished difference Result 36990 states and 52519 transitions. [2022-07-20 01:20:58,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:20:58,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 357 [2022-07-20 01:20:58,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:59,028 INFO L225 Difference]: With dead ends: 36990 [2022-07-20 01:20:59,028 INFO L226 Difference]: Without dead ends: 20557 [2022-07-20 01:20:59,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:20:59,108 INFO L413 NwaCegarLoop]: 3792 mSDtfsCounter, 3171 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:59,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 6951 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:20:59,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20557 states. [2022-07-20 01:21:00,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20557 to 20554. [2022-07-20 01:21:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20554 states, 13818 states have (on average 1.2898393399913157) internal successors, (17823), 14253 states have internal predecessors, (17823), 5571 states have call successors, (5571), 1150 states have call predecessors, (5571), 1164 states have return successors, (5752), 5435 states have call predecessors, (5752), 5570 states have call successors, (5752) [2022-07-20 01:21:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20554 states to 20554 states and 29146 transitions. [2022-07-20 01:21:00,738 INFO L78 Accepts]: Start accepts. Automaton has 20554 states and 29146 transitions. Word has length 357 [2022-07-20 01:21:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:21:00,741 INFO L495 AbstractCegarLoop]: Abstraction has 20554 states and 29146 transitions. [2022-07-20 01:21:00,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 01:21:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 20554 states and 29146 transitions. [2022-07-20 01:21:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-20 01:21:00,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:21:00,907 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:21:01,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 01:21:01,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:21:01,108 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:21:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:21:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1519245808, now seen corresponding path program 1 times [2022-07-20 01:21:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:21:01,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871915500] [2022-07-20 01:21:01,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:21:01,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:21:01,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:21:01,114 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:21:01,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 01:21:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:21:03,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-20 01:21:03,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:21:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-20 01:21:05,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:21:05,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:21:05,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871915500] [2022-07-20 01:21:05,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871915500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:21:05,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:21:05,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:21:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583801375] [2022-07-20 01:21:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:21:05,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:21:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:21:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:21:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:21:05,620 INFO L87 Difference]: Start difference. First operand 20554 states and 29146 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-20 01:21:43,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:21:45,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:21:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:21:57,973 INFO L93 Difference]: Finished difference Result 73875 states and 105893 transitions. [2022-07-20 01:21:57,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 01:21:57,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) Word has length 386 [2022-07-20 01:21:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:21:58,335 INFO L225 Difference]: With dead ends: 73875 [2022-07-20 01:21:58,336 INFO L226 Difference]: Without dead ends: 53348 [2022-07-20 01:21:58,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:21:58,449 INFO L413 NwaCegarLoop]: 4673 mSDtfsCounter, 5518 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 8398 mSolverCounterSat, 3634 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6111 SdHoareTripleChecker+Valid, 8645 SdHoareTripleChecker+Invalid, 12034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3634 IncrementalHoareTripleChecker+Valid, 8398 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:21:58,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6111 Valid, 8645 Invalid, 12034 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3634 Valid, 8398 Invalid, 2 Unknown, 0 Unchecked, 50.0s Time] [2022-07-20 01:21:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53348 states. [2022-07-20 01:22:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53348 to 52992. [2022-07-20 01:22:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52992 states, 34906 states have (on average 1.2775454076663038) internal successors, (44594), 36138 states have internal predecessors, (44594), 15024 states have call successors, (15024), 2868 states have call predecessors, (15024), 3061 states have return successors, (16276), 14855 states have call predecessors, (16276), 15023 states have call successors, (16276) [2022-07-20 01:22:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52992 states to 52992 states and 75894 transitions. [2022-07-20 01:22:01,109 INFO L78 Accepts]: Start accepts. Automaton has 52992 states and 75894 transitions. Word has length 386 [2022-07-20 01:22:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:01,110 INFO L495 AbstractCegarLoop]: Abstraction has 52992 states and 75894 transitions. [2022-07-20 01:22:01,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-20 01:22:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 52992 states and 75894 transitions. [2022-07-20 01:22:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-07-20 01:22:01,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:01,175 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:01,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 01:22:01,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:01,396 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:01,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 424396886, now seen corresponding path program 1 times [2022-07-20 01:22:01,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:01,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543503210] [2022-07-20 01:22:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:01,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:01,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:01,400 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:22:01,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 01:22:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:04,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 3147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:22:04,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-20 01:22:04,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:22:04,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:04,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543503210] [2022-07-20 01:22:04,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543503210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:04,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:04,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:22:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472089473] [2022-07-20 01:22:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:04,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:22:04,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:22:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:04,802 INFO L87 Difference]: Start difference. First operand 52992 states and 75894 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-07-20 01:22:06,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:06,696 INFO L93 Difference]: Finished difference Result 105917 states and 151663 transitions. [2022-07-20 01:22:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:22:06,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 479 [2022-07-20 01:22:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:07,265 INFO L225 Difference]: With dead ends: 105917 [2022-07-20 01:22:07,266 INFO L226 Difference]: Without dead ends: 52952 [2022-07-20 01:22:07,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:07,457 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 3138 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:07,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 3190 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:22:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52952 states. [2022-07-20 01:22:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52952 to 52952. [2022-07-20 01:22:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52952 states, 34886 states have (on average 1.2771312274264748) internal successors, (44554), 36118 states have internal predecessors, (44554), 15004 states have call successors, (15004), 2868 states have call predecessors, (15004), 3061 states have return successors, (16226), 14835 states have call predecessors, (16226), 15003 states have call successors, (16226) [2022-07-20 01:22:09,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52952 states to 52952 states and 75784 transitions. [2022-07-20 01:22:09,639 INFO L78 Accepts]: Start accepts. Automaton has 52952 states and 75784 transitions. Word has length 479 [2022-07-20 01:22:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:09,640 INFO L495 AbstractCegarLoop]: Abstraction has 52952 states and 75784 transitions. [2022-07-20 01:22:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-07-20 01:22:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 52952 states and 75784 transitions. [2022-07-20 01:22:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-07-20 01:22:09,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:09,685 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:09,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 01:22:09,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:09,892 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:09,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:09,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1105445789, now seen corresponding path program 1 times [2022-07-20 01:22:09,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:09,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000157293] [2022-07-20 01:22:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:09,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:09,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:09,897 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) [2022-07-20 01:22:09,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 01:22:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:12,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 3080 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:22:12,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-20 01:22:13,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:22:13,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:13,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000157293] [2022-07-20 01:22:13,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000157293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:13,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:13,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:22:13,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370868427] [2022-07-20 01:22:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:13,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:22:13,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:22:13,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:13,275 INFO L87 Difference]: Start difference. First operand 52952 states and 75784 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-20 01:22:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:15,211 INFO L93 Difference]: Finished difference Result 105837 states and 151443 transitions. [2022-07-20 01:22:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:22:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 462 [2022-07-20 01:22:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:15,594 INFO L225 Difference]: With dead ends: 105837 [2022-07-20 01:22:15,594 INFO L226 Difference]: Without dead ends: 52912 [2022-07-20 01:22:15,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:15,988 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 3146 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:15,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3146 Valid, 3186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:22:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2022-07-20 01:22:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 52912. [2022-07-20 01:22:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52912 states, 34866 states have (on average 1.2767165720185853) internal successors, (44514), 36098 states have internal predecessors, (44514), 14984 states have call successors, (14984), 2868 states have call predecessors, (14984), 3061 states have return successors, (16176), 14815 states have call predecessors, (16176), 14983 states have call successors, (16176) [2022-07-20 01:22:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52912 states to 52912 states and 75674 transitions. [2022-07-20 01:22:18,010 INFO L78 Accepts]: Start accepts. Automaton has 52912 states and 75674 transitions. Word has length 462 [2022-07-20 01:22:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:18,010 INFO L495 AbstractCegarLoop]: Abstraction has 52912 states and 75674 transitions. [2022-07-20 01:22:18,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-20 01:22:18,011 INFO L276 IsEmpty]: Start isEmpty. Operand 52912 states and 75674 transitions. [2022-07-20 01:22:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-07-20 01:22:18,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:18,057 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:18,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-20 01:22:18,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:18,258 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:18,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2096194764, now seen corresponding path program 1 times [2022-07-20 01:22:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:18,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894932498] [2022-07-20 01:22:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:18,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:18,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:18,262 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) [2022-07-20 01:22:18,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 01:22:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:21,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 3076 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:22:21,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-20 01:22:21,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:22:21,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:21,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894932498] [2022-07-20 01:22:21,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894932498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:21,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:21,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:22:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410224748] [2022-07-20 01:22:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:21,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:22:21,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:21,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:22:21,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:21,369 INFO L87 Difference]: Start difference. First operand 52912 states and 75674 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-20 01:22:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:23,364 INFO L93 Difference]: Finished difference Result 102159 states and 145917 transitions. [2022-07-20 01:22:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:22:23,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 460 [2022-07-20 01:22:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:23,609 INFO L225 Difference]: With dead ends: 102159 [2022-07-20 01:22:23,609 INFO L226 Difference]: Without dead ends: 49274 [2022-07-20 01:22:23,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:22:23,797 INFO L413 NwaCegarLoop]: 3110 mSDtfsCounter, 3072 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:23,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3072 Valid, 3110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:22:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49274 states. [2022-07-20 01:22:25,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49274 to 49265. [2022-07-20 01:22:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49265 states, 32673 states have (on average 1.27836439873902) internal successors, (41768), 33841 states have internal predecessors, (41768), 13724 states have call successors, (13724), 2709 states have call predecessors, (13724), 2867 states have return successors, (14755), 13510 states have call predecessors, (14755), 13723 states have call successors, (14755) [2022-07-20 01:22:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49265 states to 49265 states and 70247 transitions. [2022-07-20 01:22:25,714 INFO L78 Accepts]: Start accepts. Automaton has 49265 states and 70247 transitions. Word has length 460 [2022-07-20 01:22:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:25,715 INFO L495 AbstractCegarLoop]: Abstraction has 49265 states and 70247 transitions. [2022-07-20 01:22:25,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-20 01:22:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 49265 states and 70247 transitions. [2022-07-20 01:22:25,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-20 01:22:25,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:25,757 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:25,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-20 01:22:25,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:25,967 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:25,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash -25017009, now seen corresponding path program 1 times [2022-07-20 01:22:25,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602879918] [2022-07-20 01:22:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:25,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:25,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:25,971 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) [2022-07-20 01:22:25,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 01:22:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:28,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 2916 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-20 01:22:28,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-20 01:22:30,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:22:30,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:30,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602879918] [2022-07-20 01:22:30,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602879918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:30,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:30,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:22:30,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541199200] [2022-07-20 01:22:30,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:30,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:22:30,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:30,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:22:30,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:22:30,289 INFO L87 Difference]: Start difference. First operand 49265 states and 70247 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43)