./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 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-791161d [2022-07-23 01:33:34,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:33:34,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:33:34,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:33:34,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:33:34,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:33:34,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:33:34,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:33:34,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:33:34,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:33:34,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:33:34,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:33:34,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:33:34,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:33:34,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:33:34,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:33:34,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:33:34,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:33:34,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:33:34,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:33:34,338 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:33:34,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:33:34,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:33:34,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:33:34,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:33:34,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:33:34,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:33:34,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:33:34,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:33:34,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:33:34,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:33:34,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:33:34,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:33:34,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:33:34,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:33:34,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:33:34,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:33:34,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:33:34,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:33:34,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:33:34,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:33:34,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:33:34,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:33:34,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:33:34,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:33:34,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:33:34,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:33:34,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:33:34,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:33:34,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:33:34,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:33:34,380 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:33:34,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:33:34,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:33:34,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:33:34,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:33:34,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:33:34,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:33:34,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:33:34,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:33:34,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:33:34,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:33:34,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:33:34,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:33:34,384 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:33:34,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:33:34,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:33:34,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-23 01:33:34,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:33:34,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:33:34,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:33:34,554 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:33:34,554 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:33:34,555 INFO L432 ainManager$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 [2022-07-23 01:33:34,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7946a73/a477cbd8da384be1bcdcbfdf6a91762e/FLAG16ba3b624 [2022-07-23 01:33:35,265 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:33:35,266 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 [2022-07-23 01:33:35,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7946a73/a477cbd8da384be1bcdcbfdf6a91762e/FLAG16ba3b624 [2022-07-23 01:33:35,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7946a73/a477cbd8da384be1bcdcbfdf6a91762e [2022-07-23 01:33:35,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:33:35,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:33:35,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:33:35,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:33:35,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:33:35,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:35" (1/1) ... [2022-07-23 01:33:35,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@546a0676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:35, skipping insertion in model container [2022-07-23 01:33:35,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:35" (1/1) ... [2022-07-23 01:33:35,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:33:35,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:33:37,606 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] [2022-07-23 01:33:37,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:33:37,690 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:33:37,805 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) [2022-07-23 01:33:37,812 INFO L158 Benchmark]: Toolchain (without parser) took 2181.66ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 64.7MB in the beginning and 64.5MB in the end (delta: 198.2kB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-07-23 01:33:37,813 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:33:37,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2178.80ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 64.7MB in the beginning and 64.5MB in the end (delta: 198.2kB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-07-23 01:33:37,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2178.80ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 64.7MB in the beginning and 64.5MB in the end (delta: 198.2kB). Peak memory consumption was 64.4MB. 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-?-791161d [2022-07-23 01:33:39,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:33:39,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:33:39,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:33:39,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:33:39,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:33:39,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:33:39,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:33:39,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:33:39,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:33:39,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:33:39,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:33:39,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:33:39,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:33:39,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:33:39,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:33:39,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:33:39,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:33:39,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:33:39,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:33:39,382 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:33:39,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:33:39,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:33:39,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:33:39,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:33:39,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:33:39,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:33:39,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:33:39,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:33:39,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:33:39,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:33:39,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:33:39,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:33:39,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:33:39,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:33:39,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:33:39,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:33:39,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:33:39,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:33:39,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:33:39,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:33:39,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:33:39,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:33:39,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:33:39,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:33:39,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:33:39,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:33:39,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:33:39,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:33:39,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:33:39,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:33:39,431 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:33:39,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:33:39,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:33:39,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:33:39,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:33:39,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:33:39,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:33:39,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:33:39,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:33:39,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:33:39,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:33:39,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:33:39,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:33:39,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:33:39,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-23 01:33:39,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:33:39,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:33:39,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:33:39,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:33:39,722 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:33:39,723 INFO L432 ainManager$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 [2022-07-23 01:33:39,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f60a058f/c8b2fcbfb0054d03a15430d1069a7601/FLAGf0f6d33c6 [2022-07-23 01:33:40,506 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:33:40,506 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 [2022-07-23 01:33:40,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f60a058f/c8b2fcbfb0054d03a15430d1069a7601/FLAGf0f6d33c6 [2022-07-23 01:33:40,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f60a058f/c8b2fcbfb0054d03a15430d1069a7601 [2022-07-23 01:33:40,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:33:40,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:33:40,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:33:40,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:33:40,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:33:40,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:40" (1/1) ... [2022-07-23 01:33:40,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3733f086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:40, skipping insertion in model container [2022-07-23 01:33:40,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:40" (1/1) ... [2022-07-23 01:33:40,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:33:40,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:33:42,422 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-23 01:33:42,443 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-23 01:33:42,619 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] [2022-07-23 01:33:42,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:33:42,710 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:33:42,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:33:42,992 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] [2022-07-23 01:33:42,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:33:43,020 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:33:43,323 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] [2022-07-23 01:33:43,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:33:43,475 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:33:43,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43 WrapperNode [2022-07-23 01:33:43,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:33:43,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:33:43,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:33:43,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:33:43,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,684 INFO L137 Inliner]: procedures = 424, calls = 2551, calls flagged for inlining = 208, calls inlined = 189, statements flattened = 5544 [2022-07-23 01:33:43,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:33:43,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:33:43,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:33:43,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:33:43,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:33:43,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:33:43,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:33:43,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:33:43,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (1/1) ... [2022-07-23 01:33:43,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:33:43,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:33:43,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 01:33:43,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 01:33:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-23 01:33:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-23 01:33:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 01:33:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 01:33:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:33:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:33:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 01:33:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 01:33:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2022-07-23 01:33:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2022-07-23 01:33:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-23 01:33:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-23 01:33:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:33:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:33:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:33:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:33:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-23 01:33:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-23 01:33:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-23 01:33:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-23 01:33:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-23 01:33:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-23 01:33:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-23 01:33:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-23 01:33:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-23 01:33:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-23 01:33:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:33:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:33:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-23 01:33:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-23 01:33:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-23 01:33:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-23 01:33:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-23 01:33:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-23 01:33:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 01:33:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 01:33:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 01:33:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 01:33:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-23 01:33:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-23 01:33:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2022-07-23 01:33:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2022-07-23 01:33:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-23 01:33:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-23 01:33:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-23 01:33:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-23 01:33:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 01:33:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 01:33:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-23 01:33:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-23 01:33:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:33:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:33:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-23 01:33:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-23 01:33:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:33:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:33:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 01:33:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 01:33:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:33:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 01:33:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 01:33:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 01:33:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:33:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:33:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-23 01:33:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-23 01:33:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:33:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-23 01:33:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-23 01:33:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 01:33:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 01:33:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:33:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:33:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-23 01:33:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-23 01:33:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:33:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:33:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 01:33:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 01:33:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2022-07-23 01:33:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2022-07-23 01:33:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-23 01:33:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-23 01:33:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 01:33:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 01:33:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:33:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:33:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:33:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:33:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:33:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:33:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-23 01:33:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-23 01:33:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-23 01:33:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-23 01:33:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-23 01:33:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-23 01:33:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 01:33:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 01:33:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-23 01:33:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-23 01:33:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-23 01:33:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-23 01:33:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:33:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:33:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-23 01:33:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-23 01:33:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-23 01:33:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-23 01:33:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:33:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-23 01:33:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-23 01:33:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-23 01:33:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-23 01:33:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:33:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2022-07-23 01:33:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2022-07-23 01:33:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-23 01:33:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-23 01:33:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:33:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:33:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-23 01:33:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-23 01:33:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-23 01:33:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-23 01:33:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-23 01:33:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-23 01:33:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-23 01:33:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 01:33:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 01:33:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-23 01:33:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-23 01:33:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-23 01:33:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-23 01:33:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-23 01:33:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-23 01:33:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-23 01:33:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-23 01:33:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-23 01:33:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-23 01:33:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-23 01:33:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-23 01:33:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2022-07-23 01:33:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2022-07-23 01:33:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 01:33:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 01:33:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 01:33:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 01:33:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 01:33:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:33:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-23 01:33:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 01:33:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:33:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-23 01:33:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-23 01:33:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:33:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 01:33:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:33:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:33:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:33:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 01:33:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 01:33:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-23 01:33:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-23 01:33:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-23 01:33:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-23 01:33:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-23 01:33:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-23 01:33:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-23 01:33:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-23 01:33:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:33:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:33:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-23 01:33:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-23 01:33:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 01:33:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 01:33:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-23 01:33:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-23 01:33:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 01:33:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 01:33:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-23 01:33:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-23 01:33:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:33:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:33:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:33:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:33:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 01:33:44,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 01:33:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-23 01:33:44,038 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-23 01:33:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:33:44,038 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:33:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:33:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 01:33:44,038 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:33:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-23 01:33:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:33:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:33:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:33:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:33:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-23 01:33:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-23 01:33:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-23 01:33:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-23 01:33:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:33:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:33:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-23 01:33:44,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-23 01:33:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-23 01:33:44,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-23 01:33:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-23 01:33:44,041 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-23 01:33:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-23 01:33:44,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-23 01:33:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2022-07-23 01:33:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2022-07-23 01:33:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:33:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:33:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-23 01:33:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-23 01:33:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-23 01:33:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-23 01:33:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-23 01:33:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-23 01:33:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 01:33:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 01:33:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-23 01:33:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-23 01:33:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-23 01:33:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-23 01:33:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:33:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:33:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-23 01:33:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-23 01:33:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-23 01:33:44,044 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-23 01:33:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 01:33:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 01:33:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 01:33:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 01:33:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:33:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:33:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-23 01:33:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-23 01:33:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-23 01:33:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-23 01:33:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:33:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:33:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-23 01:33:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-23 01:33:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:33:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:33:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-23 01:33:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-23 01:33:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-23 01:33:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-23 01:33:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-23 01:33:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-23 01:33:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-23 01:33:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-23 01:33:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-23 01:33:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-23 01:33:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-23 01:33:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-23 01:33:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 01:33:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 01:33:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-23 01:33:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-23 01:33:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-23 01:33:44,780 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:33:44,783 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:33:45,159 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:34:24,476 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:34:24,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:34:24,491 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:34:24,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:24 BoogieIcfgContainer [2022-07-23 01:34:24,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:34:24,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:34:24,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:34:24,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:34:24,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:33:40" (1/3) ... [2022-07-23 01:34:24,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cf12a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:24, skipping insertion in model container [2022-07-23 01:34:24,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:43" (2/3) ... [2022-07-23 01:34:24,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cf12a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:24, skipping insertion in model container [2022-07-23 01:34:24,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:24" (3/3) ... [2022-07-23 01:34:24,500 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-23 01:34:24,510 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:34:24,510 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:34:24,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:34:24,596 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@75cc4158, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e2b6690 [2022-07-23 01:34:24,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:34:24,606 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) [2022-07-23 01:34:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-23 01:34:24,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:24,643 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] [2022-07-23 01:34:24,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1836044323, now seen corresponding path program 1 times [2022-07-23 01:34:24,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:24,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528480836] [2022-07-23 01:34:24,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:24,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:24,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:24,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:24,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:34:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:26,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 01:34:26,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-23 01:34:26,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:26,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:26,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528480836] [2022-07-23 01:34:26,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528480836] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:26,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:26,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:34:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106567257] [2022-07-23 01:34:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:26,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 01:34:26,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 01:34:26,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:34:26,455 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) [2022-07-23 01:34:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:26,611 INFO L93 Difference]: Finished difference Result 4567 states and 6529 transitions. [2022-07-23 01:34:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 01:34:26,613 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 [2022-07-23 01:34:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:26,638 INFO L225 Difference]: With dead ends: 4567 [2022-07-23 01:34:26,638 INFO L226 Difference]: Without dead ends: 2260 [2022-07-23 01:34:26,653 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 [2022-07-23 01:34:26,655 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 [2022-07-23 01:34:26,656 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] [2022-07-23 01:34:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-07-23 01:34:26,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2022-07-23 01:34:26,815 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) [2022-07-23 01:34:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3199 transitions. [2022-07-23 01:34:26,833 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3199 transitions. Word has length 211 [2022-07-23 01:34:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:26,833 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3199 transitions. [2022-07-23 01:34:26,834 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) [2022-07-23 01:34:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3199 transitions. [2022-07-23 01:34:26,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-23 01:34:26,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:26,844 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] [2022-07-23 01:34:26,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-23 01:34:27,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:27,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:27,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash -191787369, now seen corresponding path program 1 times [2022-07-23 01:34:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:27,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040304643] [2022-07-23 01:34:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:27,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:27,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:27,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:27,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:34:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:28,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 01:34:28,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-23 01:34:29,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:29,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:29,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040304643] [2022-07-23 01:34:29,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040304643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:29,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:29,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:34:29,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142855891] [2022-07-23 01:34:29,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:29,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:34:29,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:29,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:34:29,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:34:29,073 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) [2022-07-23 01:34:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:29,470 INFO L93 Difference]: Finished difference Result 4510 states and 6413 transitions. [2022-07-23 01:34:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 01:34:29,471 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 [2022-07-23 01:34:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:29,485 INFO L225 Difference]: With dead ends: 4510 [2022-07-23 01:34:29,485 INFO L226 Difference]: Without dead ends: 2261 [2022-07-23 01:34:29,496 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 [2022-07-23 01:34:29,497 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 [2022-07-23 01:34:29,497 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] [2022-07-23 01:34:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-07-23 01:34:29,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2022-07-23 01:34:29,558 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) [2022-07-23 01:34:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3200 transitions. [2022-07-23 01:34:29,573 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3200 transitions. Word has length 211 [2022-07-23 01:34:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:29,575 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3200 transitions. [2022-07-23 01:34:29,575 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) [2022-07-23 01:34:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3200 transitions. [2022-07-23 01:34:29,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-23 01:34:29,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:29,582 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] [2022-07-23 01:34:29,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:29,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:29,803 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:29,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:29,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1519484747, now seen corresponding path program 1 times [2022-07-23 01:34:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:29,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193267631] [2022-07-23 01:34:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:29,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:29,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:29,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:29,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:34:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:31,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 01:34:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-23 01:34:31,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:34:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-23 01:34:32,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193267631] [2022-07-23 01:34:32,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193267631] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:34:32,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:34:32,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 01:34:32,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768401229] [2022-07-23 01:34:32,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:34:32,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:34:32,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:34:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:34:32,657 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) [2022-07-23 01:34:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:33,180 INFO L93 Difference]: Finished difference Result 4512 states and 6415 transitions. [2022-07-23 01:34:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:34:33,181 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 [2022-07-23 01:34:33,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:33,199 INFO L225 Difference]: With dead ends: 4512 [2022-07-23 01:34:33,199 INFO L226 Difference]: Without dead ends: 2262 [2022-07-23 01:34:33,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-23 01:34:33,214 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, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:33,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22332 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:34:33,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-07-23 01:34:33,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-07-23 01:34:33,295 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) [2022-07-23 01:34:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3201 transitions. [2022-07-23 01:34:33,308 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3201 transitions. Word has length 213 [2022-07-23 01:34:33,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:33,309 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3201 transitions. [2022-07-23 01:34:33,310 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) [2022-07-23 01:34:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3201 transitions. [2022-07-23 01:34:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-23 01:34:33,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:33,317 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] [2022-07-23 01:34:33,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:33,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:33,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:33,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1053476375, now seen corresponding path program 2 times [2022-07-23 01:34:33,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:33,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876262624] [2022-07-23 01:34:33,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:34:33,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:33,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:33,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:33,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:34:34,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:34:34,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:34:34,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 01:34:34,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-23 01:34:34,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:34,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:34,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876262624] [2022-07-23 01:34:34,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876262624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:34,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:34,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:34:34,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503582148] [2022-07-23 01:34:34,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:34,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 01:34:34,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 01:34:34,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 01:34:34,872 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) [2022-07-23 01:34:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:35,343 INFO L93 Difference]: Finished difference Result 4755 states and 6787 transitions. [2022-07-23 01:34:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:34:35,343 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 [2022-07-23 01:34:35,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:35,363 INFO L225 Difference]: With dead ends: 4755 [2022-07-23 01:34:35,363 INFO L226 Difference]: Without dead ends: 2520 [2022-07-23 01:34:35,374 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 [2022-07-23 01:34:35,376 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 369 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:35,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 10193 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:34:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-07-23 01:34:35,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2264. [2022-07-23 01:34:35,442 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) [2022-07-23 01:34:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3203 transitions. [2022-07-23 01:34:35,453 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3203 transitions. Word has length 215 [2022-07-23 01:34:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:35,458 INFO L495 AbstractCegarLoop]: Abstraction has 2264 states and 3203 transitions. [2022-07-23 01:34:35,458 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) [2022-07-23 01:34:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3203 transitions. [2022-07-23 01:34:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-23 01:34:35,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:35,465 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] [2022-07-23 01:34:35,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:35,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:35,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:35,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:35,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1356599653, now seen corresponding path program 1 times [2022-07-23 01:34:35,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:35,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325143787] [2022-07-23 01:34:35,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:35,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:35,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:35,682 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:35,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:34:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:37,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:34:37,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-23 01:34:37,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:34:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-23 01:34:38,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:38,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325143787] [2022-07-23 01:34:38,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325143787] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:34:38,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:34:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 01:34:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373645636] [2022-07-23 01:34:38,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:34:38,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 01:34:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 01:34:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 01:34:38,768 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) [2022-07-23 01:34:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:39,294 INFO L93 Difference]: Finished difference Result 4518 states and 6421 transitions. [2022-07-23 01:34:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 01:34:39,295 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 [2022-07-23 01:34:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:39,305 INFO L225 Difference]: With dead ends: 4518 [2022-07-23 01:34:39,305 INFO L226 Difference]: Without dead ends: 2265 [2022-07-23 01:34:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:34:39,313 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 12 mSDsluCounter, 19143 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 22337 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:34:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-07-23 01:34:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2265. [2022-07-23 01:34:39,351 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) [2022-07-23 01:34:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3204 transitions. [2022-07-23 01:34:39,360 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3204 transitions. Word has length 221 [2022-07-23 01:34:39,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:39,360 INFO L495 AbstractCegarLoop]: Abstraction has 2265 states and 3204 transitions. [2022-07-23 01:34:39,361 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) [2022-07-23 01:34:39,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3204 transitions. [2022-07-23 01:34:39,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-23 01:34:39,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:39,366 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] [2022-07-23 01:34:39,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:39,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:39,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:39,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:39,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1811297457, now seen corresponding path program 2 times [2022-07-23 01:34:39,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:39,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16308226] [2022-07-23 01:34:39,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:34:39,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:39,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:39,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:39,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:34:40,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:34:40,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:34:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-23 01:34:40,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-07-23 01:34:41,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:41,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:41,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16308226] [2022-07-23 01:34:41,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16308226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:41,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:41,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:34:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274892151] [2022-07-23 01:34:41,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:41,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:34:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:34:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:34:41,211 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) [2022-07-23 01:34:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:41,753 INFO L93 Difference]: Finished difference Result 4511 states and 6414 transitions. [2022-07-23 01:34:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 01:34:41,754 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 [2022-07-23 01:34:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:41,767 INFO L225 Difference]: With dead ends: 4511 [2022-07-23 01:34:41,767 INFO L226 Difference]: Without dead ends: 2273 [2022-07-23 01:34:41,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:34:41,779 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 2 mSDsluCounter, 19151 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22346 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:41,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22346 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:34:41,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-07-23 01:34:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-07-23 01:34:41,839 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) [2022-07-23 01:34:41,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3222 transitions. [2022-07-23 01:34:41,848 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3222 transitions. Word has length 223 [2022-07-23 01:34:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:41,849 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3222 transitions. [2022-07-23 01:34:41,850 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) [2022-07-23 01:34:41,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3222 transitions. [2022-07-23 01:34:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-23 01:34:41,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:41,882 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] [2022-07-23 01:34:41,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:42,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:42,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:42,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:42,104 INFO L85 PathProgramCache]: Analyzing trace with hash -886033841, now seen corresponding path program 1 times [2022-07-23 01:34:42,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:42,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941600719] [2022-07-23 01:34:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:42,107 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:42,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:34:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:43,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 01:34:43,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-07-23 01:34:44,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:34:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-23 01:34:45,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941600719] [2022-07-23 01:34:45,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941600719] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:34:45,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:34:45,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 01:34:45,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902704692] [2022-07-23 01:34:45,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:34:45,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 01:34:45,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 01:34:45,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:34:45,564 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) [2022-07-23 01:34:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:46,190 INFO L93 Difference]: Finished difference Result 4536 states and 6459 transitions. [2022-07-23 01:34:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 01:34:46,191 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 [2022-07-23 01:34:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:46,202 INFO L225 Difference]: With dead ends: 4536 [2022-07-23 01:34:46,202 INFO L226 Difference]: Without dead ends: 2274 [2022-07-23 01:34:46,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:34:46,211 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 11 mSDsluCounter, 22326 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:46,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25520 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:34:46,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-07-23 01:34:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2022-07-23 01:34:46,257 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) [2022-07-23 01:34:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3223 transitions. [2022-07-23 01:34:46,265 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3223 transitions. Word has length 235 [2022-07-23 01:34:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:46,267 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3223 transitions. [2022-07-23 01:34:46,268 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) [2022-07-23 01:34:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3223 transitions. [2022-07-23 01:34:46,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-23 01:34:46,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:46,273 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] [2022-07-23 01:34:46,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:46,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:46,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1388266419, now seen corresponding path program 2 times [2022-07-23 01:34:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:46,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495513148] [2022-07-23 01:34:46,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:34:46,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:46,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:46,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:34:46,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 01:34:47,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:34:47,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:34:47,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:34:47,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-23 01:34:47,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:47,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:47,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495513148] [2022-07-23 01:34:47,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495513148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:47,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:47,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:34:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824799356] [2022-07-23 01:34:47,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:47,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:34:47,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:47,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:34:47,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:34:47,537 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) [2022-07-23 01:34:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:47,896 INFO L93 Difference]: Finished difference Result 4523 states and 6436 transitions. [2022-07-23 01:34:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:34:47,899 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 [2022-07-23 01:34:47,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:47,911 INFO L225 Difference]: With dead ends: 4523 [2022-07-23 01:34:47,911 INFO L226 Difference]: Without dead ends: 2276 [2022-07-23 01:34:47,920 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 [2022-07-23 01:34:47,921 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:47,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6391 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:34:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-07-23 01:34:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2275. [2022-07-23 01:34:47,977 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) [2022-07-23 01:34:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3224 transitions. [2022-07-23 01:34:47,984 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3224 transitions. Word has length 231 [2022-07-23 01:34:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:47,985 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 3224 transitions. [2022-07-23 01:34:47,985 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) [2022-07-23 01:34:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3224 transitions. [2022-07-23 01:34:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-23 01:34:47,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:47,992 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] [2022-07-23 01:34:48,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-23 01:34:48,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:48,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -326695337, now seen corresponding path program 1 times [2022-07-23 01:34:48,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:48,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908489186] [2022-07-23 01:34:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:48,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:48,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:48,215 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) [2022-07-23 01:34:48,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 01:34:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:50,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:34:50,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-23 01:34:50,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:50,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:50,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908489186] [2022-07-23 01:34:50,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908489186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:50,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:50,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:34:50,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372354679] [2022-07-23 01:34:50,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:50,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:34:50,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:34:50,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:34:50,370 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) [2022-07-23 01:34:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:50,810 INFO L93 Difference]: Finished difference Result 6426 states and 9103 transitions. [2022-07-23 01:34:50,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:34:50,810 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 [2022-07-23 01:34:50,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:50,834 INFO L225 Difference]: With dead ends: 6426 [2022-07-23 01:34:50,834 INFO L226 Difference]: Without dead ends: 4178 [2022-07-23 01:34:50,844 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 [2022-07-23 01:34:50,846 INFO L413 NwaCegarLoop]: 3713 mSDtfsCounter, 2776 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:50,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 6735 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:34:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-07-23 01:34:50,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 4162. [2022-07-23 01:34:50,971 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) [2022-07-23 01:34:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5895 transitions. [2022-07-23 01:34:51,019 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5895 transitions. Word has length 239 [2022-07-23 01:34:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:51,019 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5895 transitions. [2022-07-23 01:34:51,019 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) [2022-07-23 01:34:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5895 transitions. [2022-07-23 01:34:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-07-23 01:34:51,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:51,054 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] [2022-07-23 01:34:51,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-23 01:34:51,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:51,264 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1204888151, now seen corresponding path program 1 times [2022-07-23 01:34:51,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:51,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162624004] [2022-07-23 01:34:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:51,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:51,268 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) [2022-07-23 01:34:51,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 01:34:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:53,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:34:53,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-23 01:34:53,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:53,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:53,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162624004] [2022-07-23 01:34:53,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162624004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:53,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:53,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:34:53,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98747711] [2022-07-23 01:34:53,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:53,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:34:53,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:34:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:34:53,729 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) [2022-07-23 01:34:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:54,106 INFO L93 Difference]: Finished difference Result 12386 states and 17596 transitions. [2022-07-23 01:34:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:34:54,106 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 [2022-07-23 01:34:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:54,154 INFO L225 Difference]: With dead ends: 12386 [2022-07-23 01:34:54,154 INFO L226 Difference]: Without dead ends: 8251 [2022-07-23 01:34:54,214 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 [2022-07-23 01:34:54,215 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:34:54,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 6979 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 01:34:54,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8251 states. [2022-07-23 01:34:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8248. [2022-07-23 01:34:54,375 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) [2022-07-23 01:34:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11703 transitions. [2022-07-23 01:34:54,404 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11703 transitions. Word has length 360 [2022-07-23 01:34:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:54,405 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 11703 transitions. [2022-07-23 01:34:54,405 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) [2022-07-23 01:34:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11703 transitions. [2022-07-23 01:34:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-23 01:34:54,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:54,419 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] [2022-07-23 01:34:54,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:54,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:54,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:54,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash 71382096, now seen corresponding path program 1 times [2022-07-23 01:34:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:54,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450071382] [2022-07-23 01:34:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:54,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:54,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:54,635 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) [2022-07-23 01:34:54,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 01:34:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:34:56,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:34:56,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:34:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-23 01:34:57,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:34:57,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:34:57,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450071382] [2022-07-23 01:34:57,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450071382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:34:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:34:57,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:34:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125787782] [2022-07-23 01:34:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:34:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:34:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:34:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:34:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:34:57,025 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) [2022-07-23 01:34:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:34:57,448 INFO L93 Difference]: Finished difference Result 20588 states and 29255 transitions. [2022-07-23 01:34:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:34:57,448 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 [2022-07-23 01:34:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:34:57,499 INFO L225 Difference]: With dead ends: 20588 [2022-07-23 01:34:57,499 INFO L226 Difference]: Without dead ends: 12367 [2022-07-23 01:34:57,526 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 [2022-07-23 01:34:57,526 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 [2022-07-23 01:34:57,527 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] [2022-07-23 01:34:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-07-23 01:34:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 12364. [2022-07-23 01:34:57,861 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) [2022-07-23 01:34:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 17543 transitions. [2022-07-23 01:34:57,949 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 17543 transitions. Word has length 361 [2022-07-23 01:34:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:34:57,950 INFO L495 AbstractCegarLoop]: Abstraction has 12364 states and 17543 transitions. [2022-07-23 01:34:57,950 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) [2022-07-23 01:34:57,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 17543 transitions. [2022-07-23 01:34:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-23 01:34:57,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:34:57,967 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] [2022-07-23 01:34:58,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 01:34:58,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:34:58,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:34:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:34:58,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1100248334, now seen corresponding path program 1 times [2022-07-23 01:34:58,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:34:58,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017605378] [2022-07-23 01:34:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:34:58,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:34:58,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:34:58,191 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) [2022-07-23 01:34:58,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 01:35:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:00,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:35:00,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-23 01:35:00,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:00,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:00,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017605378] [2022-07-23 01:35:00,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017605378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:00,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:00,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:35:00,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295005563] [2022-07-23 01:35:00,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:00,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:35:00,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:35:00,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:00,643 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) [2022-07-23 01:35:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:01,327 INFO L93 Difference]: Finished difference Result 28816 states and 40937 transitions. [2022-07-23 01:35:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:35:01,328 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 [2022-07-23 01:35:01,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:01,420 INFO L225 Difference]: With dead ends: 28816 [2022-07-23 01:35:01,421 INFO L226 Difference]: Without dead ends: 16479 [2022-07-23 01:35:01,496 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 [2022-07-23 01:35:01,497 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 [2022-07-23 01:35:01,497 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] [2022-07-23 01:35:01,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2022-07-23 01:35:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16476. [2022-07-23 01:35:02,205 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) [2022-07-23 01:35:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16476 states to 16476 states and 23374 transitions. [2022-07-23 01:35:02,492 INFO L78 Accepts]: Start accepts. Automaton has 16476 states and 23374 transitions. Word has length 356 [2022-07-23 01:35:02,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:02,493 INFO L495 AbstractCegarLoop]: Abstraction has 16476 states and 23374 transitions. [2022-07-23 01:35:02,493 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) [2022-07-23 01:35:02,493 INFO L276 IsEmpty]: Start isEmpty. Operand 16476 states and 23374 transitions. [2022-07-23 01:35:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-07-23 01:35:02,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:02,526 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] [2022-07-23 01:35:02,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:02,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:02,740 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:02,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash -911585011, now seen corresponding path program 1 times [2022-07-23 01:35:02,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:02,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910282720] [2022-07-23 01:35:02,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:02,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:02,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:02,744 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) [2022-07-23 01:35:02,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 01:35:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:05,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:35:05,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-23 01:35:05,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:05,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:05,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910282720] [2022-07-23 01:35:05,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910282720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:05,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:05,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:35:05,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159368339] [2022-07-23 01:35:05,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:05,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:35:05,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:05,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:35:05,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:05,221 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) [2022-07-23 01:35:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:05,653 INFO L93 Difference]: Finished difference Result 32909 states and 46689 transitions. [2022-07-23 01:35:05,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:35:05,654 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 [2022-07-23 01:35:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:05,728 INFO L225 Difference]: With dead ends: 32909 [2022-07-23 01:35:05,729 INFO L226 Difference]: Without dead ends: 16460 [2022-07-23 01:35:05,779 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 [2022-07-23 01:35:05,780 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 [2022-07-23 01:35:05,780 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] [2022-07-23 01:35:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16460 states. [2022-07-23 01:35:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16460 to 16460. [2022-07-23 01:35:06,290 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) [2022-07-23 01:35:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16460 states to 16460 states and 23342 transitions. [2022-07-23 01:35:06,361 INFO L78 Accepts]: Start accepts. Automaton has 16460 states and 23342 transitions. Word has length 428 [2022-07-23 01:35:06,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:06,361 INFO L495 AbstractCegarLoop]: Abstraction has 16460 states and 23342 transitions. [2022-07-23 01:35:06,361 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) [2022-07-23 01:35:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 16460 states and 23342 transitions. [2022-07-23 01:35:06,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-23 01:35:06,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:06,376 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] [2022-07-23 01:35:06,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:06,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:06,585 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2132796789, now seen corresponding path program 1 times [2022-07-23 01:35:06,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:06,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254600957] [2022-07-23 01:35:06,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:06,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:06,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:06,589 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) [2022-07-23 01:35:06,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 01:35:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:09,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:35:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-23 01:35:09,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:09,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:09,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254600957] [2022-07-23 01:35:09,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254600957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:09,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:09,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:35:09,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093838982] [2022-07-23 01:35:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:09,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:35:09,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:09,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:35:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:09,173 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) [2022-07-23 01:35:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:09,802 INFO L93 Difference]: Finished difference Result 36990 states and 52519 transitions. [2022-07-23 01:35:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:35:09,803 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 [2022-07-23 01:35:09,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:09,904 INFO L225 Difference]: With dead ends: 36990 [2022-07-23 01:35:09,905 INFO L226 Difference]: Without dead ends: 20557 [2022-07-23 01:35:09,972 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 [2022-07-23 01:35:09,973 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 [2022-07-23 01:35:09,973 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] [2022-07-23 01:35:09,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20557 states. [2022-07-23 01:35:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20557 to 20554. [2022-07-23 01:35:10,595 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) [2022-07-23 01:35:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20554 states to 20554 states and 29146 transitions. [2022-07-23 01:35:10,673 INFO L78 Accepts]: Start accepts. Automaton has 20554 states and 29146 transitions. Word has length 357 [2022-07-23 01:35:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 20554 states and 29146 transitions. [2022-07-23 01:35:10,674 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) [2022-07-23 01:35:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 20554 states and 29146 transitions. [2022-07-23 01:35:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-07-23 01:35:10,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:10,695 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:35:10,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:10,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:10,912 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash -990641278, now seen corresponding path program 1 times [2022-07-23 01:35:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:10,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716750108] [2022-07-23 01:35:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:10,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:10,915 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) [2022-07-23 01:35:10,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 01:35:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:13,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 3062 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:35:13,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-23 01:35:13,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:13,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:13,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716750108] [2022-07-23 01:35:13,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716750108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:13,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:13,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:35:13,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145128981] [2022-07-23 01:35:13,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:13,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:35:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:13,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:35:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:13,896 INFO L87 Difference]: Start difference. First operand 20554 states and 29146 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-07-23 01:35:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:35:14,579 INFO L93 Difference]: Finished difference Result 41061 states and 58227 transitions. [2022-07-23 01:35:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:35:14,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 455 [2022-07-23 01:35:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:35:14,674 INFO L225 Difference]: With dead ends: 41061 [2022-07-23 01:35:14,674 INFO L226 Difference]: Without dead ends: 20534 [2022-07-23 01:35:14,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:35:14,744 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 3150 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 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 [2022-07-23 01:35:14,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 3190 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:35:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20534 states. [2022-07-23 01:35:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20534 to 20534. [2022-07-23 01:35:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20534 states, 13808 states have (on average 1.2893250289687137) internal successors, (17803), 14243 states have internal predecessors, (17803), 5561 states have call successors, (5561), 1150 states have call predecessors, (5561), 1164 states have return successors, (5742), 5425 states have call predecessors, (5742), 5560 states have call successors, (5742) [2022-07-23 01:35:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20534 states to 20534 states and 29106 transitions. [2022-07-23 01:35:15,489 INFO L78 Accepts]: Start accepts. Automaton has 20534 states and 29106 transitions. Word has length 455 [2022-07-23 01:35:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:35:15,491 INFO L495 AbstractCegarLoop]: Abstraction has 20534 states and 29106 transitions. [2022-07-23 01:35:15,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-07-23 01:35:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 20534 states and 29106 transitions. [2022-07-23 01:35:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-23 01:35:15,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:35:15,513 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] [2022-07-23 01:35:15,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-23 01:35:15,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:35:15,724 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:35:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:35:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -657438690, now seen corresponding path program 1 times [2022-07-23 01:35:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:35:15,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807560226] [2022-07-23 01:35:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:35:15,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:35:15,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:35:15,728 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) [2022-07-23 01:35:15,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 01:35:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:35:18,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2915 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 01:35:18,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:35:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-23 01:35:19,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:35:19,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:35:19,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807560226] [2022-07-23 01:35:19,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807560226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:35:19,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:35:19,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 01:35:19,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727304579] [2022-07-23 01:35:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:35:19,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:35:19,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:35:19,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:35:19,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:35:19,801 INFO L87 Difference]: Start difference. First operand 20534 states and 29106 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) [2022-07-23 01:35:55,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:35:57,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:36:10,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:36:10,956 INFO L93 Difference]: Finished difference Result 73815 states and 105693 transitions. [2022-07-23 01:36:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 01:36:10,957 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 392 [2022-07-23 01:36:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:36:11,235 INFO L225 Difference]: With dead ends: 73815 [2022-07-23 01:36:11,235 INFO L226 Difference]: Without dead ends: 53308 [2022-07-23 01:36:11,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:36:11,338 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 5940 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 8024 mSolverCounterSat, 3810 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6529 SdHoareTripleChecker+Valid, 7765 SdHoareTripleChecker+Invalid, 11836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3810 IncrementalHoareTripleChecker+Valid, 8024 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2022-07-23 01:36:11,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6529 Valid, 7765 Invalid, 11836 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3810 Valid, 8024 Invalid, 2 Unknown, 0 Unchecked, 48.7s Time] [2022-07-23 01:36:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53308 states. [2022-07-23 01:36:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53308 to 52952. [2022-07-23 01:36:13,174 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) [2022-07-23 01:36:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52952 states to 52952 states and 75784 transitions. [2022-07-23 01:36:13,603 INFO L78 Accepts]: Start accepts. Automaton has 52952 states and 75784 transitions. Word has length 392 [2022-07-23 01:36:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:36:13,603 INFO L495 AbstractCegarLoop]: Abstraction has 52952 states and 75784 transitions. [2022-07-23 01:36:13,603 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) [2022-07-23 01:36:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 52952 states and 75784 transitions. [2022-07-23 01:36:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-07-23 01:36:13,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:36:13,652 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] [2022-07-23 01:36:13,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 01:36:13,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:36:13,857 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:36:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:36:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 424396886, now seen corresponding path program 1 times [2022-07-23 01:36:13,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:36:13,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466505423] [2022-07-23 01:36:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:36:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:36:13,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:36:13,863 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) [2022-07-23 01:36:13,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 01:36:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:36:16,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 3147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:36:16,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:36:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-23 01:36:17,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:36:17,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:36:17,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466505423] [2022-07-23 01:36:17,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466505423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:36:17,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:36:17,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:36:17,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385180589] [2022-07-23 01:36:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:36:17,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:36:17,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:36:17,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:36:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:36:17,288 INFO L87 Difference]: Start difference. First operand 52952 states and 75784 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) [2022-07-23 01:36:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:36:19,045 INFO L93 Difference]: Finished difference Result 105837 states and 151443 transitions. [2022-07-23 01:36:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:36:19,046 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 [2022-07-23 01:36:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:36:19,403 INFO L225 Difference]: With dead ends: 105837 [2022-07-23 01:36:19,403 INFO L226 Difference]: Without dead ends: 52912 [2022-07-23 01:36:19,554 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 [2022-07-23 01:36:19,555 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 3134 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:36:19,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3134 Valid, 3186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:36:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2022-07-23 01:36:21,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 52912. [2022-07-23 01:36:21,240 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) [2022-07-23 01:36:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52912 states to 52912 states and 75674 transitions. [2022-07-23 01:36:21,480 INFO L78 Accepts]: Start accepts. Automaton has 52912 states and 75674 transitions. Word has length 479 [2022-07-23 01:36:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:36:21,481 INFO L495 AbstractCegarLoop]: Abstraction has 52912 states and 75674 transitions. [2022-07-23 01:36:21,481 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) [2022-07-23 01:36:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 52912 states and 75674 transitions. [2022-07-23 01:36:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2022-07-23 01:36:21,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:36:21,523 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:36:21,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-23 01:36:21,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:36:21,724 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:36:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:36:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash 958580803, now seen corresponding path program 1 times [2022-07-23 01:36:21,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:36:21,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492338131] [2022-07-23 01:36:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:36:21,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:36:21,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:36:21,729 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) [2022-07-23 01:36:21,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 01:36:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:36:24,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3049 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:36:24,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:36:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-23 01:36:24,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:36:24,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:36:24,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492338131] [2022-07-23 01:36:24,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492338131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:36:24,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:36:24,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:36:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210755251] [2022-07-23 01:36:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:36:25,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:36:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:36:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:36:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:36:25,001 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, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-23 01:36:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:36:26,792 INFO L93 Difference]: Finished difference Result 102159 states and 145917 transitions. [2022-07-23 01:36:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:36:26,792 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, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 450 [2022-07-23 01:36:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:36:27,163 INFO L225 Difference]: With dead ends: 102159 [2022-07-23 01:36:27,163 INFO L226 Difference]: Without dead ends: 49274 [2022-07-23 01:36:27,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:36:27,318 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 [2022-07-23 01:36:27,318 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] [2022-07-23 01:36:27,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49274 states. [2022-07-23 01:36:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49274 to 49265. [2022-07-23 01:36:28,972 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) [2022-07-23 01:36:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49265 states to 49265 states and 70247 transitions. [2022-07-23 01:36:29,526 INFO L78 Accepts]: Start accepts. Automaton has 49265 states and 70247 transitions. Word has length 450 [2022-07-23 01:36:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:36:29,527 INFO L495 AbstractCegarLoop]: Abstraction has 49265 states and 70247 transitions. [2022-07-23 01:36:29,527 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, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-23 01:36:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 49265 states and 70247 transitions. [2022-07-23 01:36:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-07-23 01:36:29,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:36:29,580 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, 3, 3, 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] [2022-07-23 01:36:29,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-23 01:36:29,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:36:29,781 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:36:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:36:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash 402344649, now seen corresponding path program 1 times [2022-07-23 01:36:29,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:36:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199851953] [2022-07-23 01:36:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:36:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:36:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:36:29,785 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) [2022-07-23 01:36:29,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-23 01:36:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:36:32,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-23 01:36:32,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:36:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-07-23 01:36:34,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:36:34,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:36:34,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199851953] [2022-07-23 01:36:34,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199851953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:36:34,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:36:34,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:36:34,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464971948] [2022-07-23 01:36:34,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:36:34,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:36:34,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:36:34,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:36:34,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:36:34,476 INFO L87 Difference]: Start difference. First operand 49265 states and 70247 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 7 states have internal predecessors, (194), 5 states have call successors, (50), 4 states have call predecessors, (50), 5 states have return successors, (44), 6 states have call predecessors, (44), 5 states have call successors, (44)