./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.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 a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:55:29,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:55:29,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:55:29,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:55:29,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:55:29,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:55:29,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:55:29,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:55:29,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:55:29,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:55:29,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:55:29,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:55:29,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:55:29,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:55:29,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:55:29,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:55:29,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:55:29,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:55:29,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:55:29,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:55:29,336 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:55:29,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:55:29,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:55:29,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:55:29,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:55:29,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:55:29,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:55:29,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:55:29,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:55:29,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:55:29,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:55:29,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:55:29,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:55:29,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:55:29,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:55:29,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:55:29,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:55:29,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:55:29,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:55:29,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:55:29,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:55:29,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:55:29,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:55:29,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:55:29,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:55:29,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:55:29,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:55:29,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:55:29,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:55:29,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:55:29,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:55:29,391 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:55:29,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:55:29,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:55:29,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:55:29,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:55:29,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:55:29,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:55:29,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:55:29,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:55:29,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:55:29,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:55:29,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:55:29,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:55:29,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:55:29,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:55:29,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:55:29,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:55:29,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:55:29,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:55:29,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:55:29,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:55:29,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:55:29,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-22 23:55:29,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:55:29,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:55:29,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:55:29,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:55:29,641 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:55:29,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-22 23:55:29,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1922391/93c51b75e6704cb58a46beb3c2c0cd1b/FLAGfb6fc8bed [2022-07-22 23:55:30,510 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:55:30,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-22 23:55:30,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1922391/93c51b75e6704cb58a46beb3c2c0cd1b/FLAGfb6fc8bed [2022-07-22 23:55:31,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1922391/93c51b75e6704cb58a46beb3c2c0cd1b [2022-07-22 23:55:31,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:55:31,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:55:31,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:55:31,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:55:31,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:55:31,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:55:31" (1/1) ... [2022-07-22 23:55:31,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167329ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:31, skipping insertion in model container [2022-07-22 23:55:31,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:55:31" (1/1) ... [2022-07-22 23:55:31,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:55:31,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:55:32,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-22 23:55:34,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:55:34,873 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:55:34,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-22 23:55:35,060 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) 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) [2022-07-22 23:55:35,066 INFO L158 Benchmark]: Toolchain (without parser) took 4039.64ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 59.8MB in the beginning and 63.7MB in the end (delta: -3.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2022-07-22 23:55:35,067 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 23:55:35,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4037.83ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 59.8MB in the beginning and 63.7MB in the end (delta: -3.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2022-07-22 23:55:35,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4037.83ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 59.8MB in the beginning and 63.7MB in the end (delta: -3.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.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 a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:55:36,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:55:36,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:55:36,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:55:36,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:55:36,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:55:36,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:55:36,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:55:36,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:55:36,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:55:36,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:55:36,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:55:36,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:55:36,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:55:36,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:55:36,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:55:36,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:55:36,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:55:36,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:55:36,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:55:36,927 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:55:36,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:55:36,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:55:36,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:55:36,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:55:36,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:55:36,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:55:36,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:55:36,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:55:36,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:55:36,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:55:36,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:55:36,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:55:36,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:55:36,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:55:36,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:55:36,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:55:36,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:55:36,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:55:36,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:55:36,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:55:36,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:55:36,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 23:55:36,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:55:36,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:55:36,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:55:36,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:55:36,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:55:36,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:55:36,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:55:36,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:55:36,995 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:55:36,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:55:36,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:55:36,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 23:55:36,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:55:36,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:55:36,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:55:36,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:55:36,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:55:36,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:55:36,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:55:36,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:55:36,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:55:36,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:55:36,999 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 23:55:36,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 23:55:37,000 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:55:37,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:55:37,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:55:37,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 23:55:37,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-22 23:55:37,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:55:37,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:55:37,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:55:37,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:55:37,342 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:55:37,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-22 23:55:37,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b932c44/826903353b5d41b0a7c435c90805ebb6/FLAG8010b2748 [2022-07-22 23:55:38,340 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:55:38,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-22 23:55:38,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b932c44/826903353b5d41b0a7c435c90805ebb6/FLAG8010b2748 [2022-07-22 23:55:38,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b932c44/826903353b5d41b0a7c435c90805ebb6 [2022-07-22 23:55:38,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:55:38,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:55:38,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:55:38,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:55:38,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:55:38,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:55:38" (1/1) ... [2022-07-22 23:55:38,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d38bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:38, skipping insertion in model container [2022-07-22 23:55:38,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:55:38" (1/1) ... [2022-07-22 23:55:38,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:55:38,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:55:39,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-22 23:55:42,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:55:42,389 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 23:55:42,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:55:42,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-22 23:55:42,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:55:42,918 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:55:43,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-22 23:55:43,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:55:43,708 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:55:43,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43 WrapperNode [2022-07-22 23:55:43,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:55:43,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:55:43,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:55:43,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:55:43,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:43,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,076 INFO L137 Inliner]: procedures = 451, calls = 5982, calls flagged for inlining = 178, calls inlined = 156, statements flattened = 7209 [2022-07-22 23:55:44,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:55:44,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:55:44,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:55:44,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:55:44,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:55:44,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:55:44,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:55:44,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:55:44,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (1/1) ... [2022-07-22 23:55:44,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:55:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:55:44,401 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) [2022-07-22 23:55:44,410 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 [2022-07-22 23:55:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-22 23:55:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-22 23:55:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-22 23:55:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-22 23:55:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-22 23:55:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-22 23:55:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-22 23:55:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-22 23:55:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-22 23:55:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-22 23:55:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-22 23:55:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:55:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:55:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:55:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:55:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-22 23:55:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-22 23:55:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-22 23:55:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-22 23:55:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-22 23:55:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-22 23:55:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:55:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:55:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-22 23:55:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-22 23:55:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-22 23:55:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-22 23:55:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-22 23:55:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-22 23:55:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-22 23:55:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-22 23:55:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-22 23:55:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-22 23:55:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-22 23:55:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-22 23:55:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-22 23:55:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-22 23:55:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:55:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:55:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-22 23:55:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-22 23:55:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:55:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-22 23:55:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 23:55:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 23:55:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-22 23:55:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-22 23:55:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-22 23:55:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:55:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:55:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-22 23:55:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-22 23:55:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-22 23:55:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-22 23:55:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-22 23:55:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-22 23:55:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-22 23:55:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-22 23:55:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-22 23:55:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-22 23:55:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:55:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:55:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-22 23:55:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-22 23:55:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-22 23:55:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-22 23:55:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-22 23:55:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-22 23:55:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-22 23:55:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-22 23:55:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-22 23:55:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-22 23:55:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:55:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:55:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:55:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:55:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:55:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-22 23:55:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-22 23:55:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 23:55:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 23:55:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-22 23:55:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-22 23:55:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:55:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:55:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-22 23:55:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-22 23:55:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-22 23:55:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-22 23:55:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-22 23:55:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-22 23:55:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-22 23:55:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-22 23:55:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 23:55:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-22 23:55:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-22 23:55:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-22 23:55:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-22 23:55:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:55:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:55:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-22 23:55:44,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-22 23:55:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-07-22 23:55:44,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-07-22 23:55:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 23:55:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-22 23:55:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-22 23:55:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-22 23:55:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-22 23:55:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-22 23:55:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 23:55:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:55:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-22 23:55:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:55:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:55:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:55:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-22 23:55:44,464 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-22 23:55:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-22 23:55:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-22 23:55:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-22 23:55:44,469 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-22 23:55:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-22 23:55:44,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-22 23:55:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 23:55:44,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 23:55:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:55:44,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:55:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-22 23:55:44,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-22 23:55:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:55:44,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:55:44,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:55:44,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:55:44,471 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-22 23:55:44,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-22 23:55:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-22 23:55:44,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-22 23:55:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-22 23:55:44,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-22 23:55:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:55:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-22 23:55:44,473 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-22 23:55:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-22 23:55:44,473 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-22 23:55:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:55:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:55:44,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:55:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-22 23:55:44,474 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-22 23:55:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-22 23:55:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-22 23:55:44,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-22 23:55:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 23:55:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-22 23:55:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 23:55:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:55:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-22 23:55:44,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-22 23:55:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-22 23:55:44,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-22 23:55:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-22 23:55:44,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-22 23:55:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:55:44,476 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:55:44,476 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-22 23:55:44,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-22 23:55:44,476 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-22 23:55:44,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-22 23:55:44,476 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-22 23:55:44,476 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-22 23:55:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-22 23:55:44,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-22 23:55:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-22 23:55:44,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-22 23:55:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-22 23:55:44,477 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-22 23:55:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:55:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:55:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-22 23:55:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-22 23:55:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-22 23:55:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-22 23:55:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-22 23:55:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-22 23:55:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-22 23:55:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-22 23:55:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-22 23:55:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-22 23:55:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-22 23:55:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-22 23:55:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:55:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:55:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:55:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:55:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-22 23:55:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-22 23:55:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-22 23:55:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-22 23:55:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 23:55:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 23:55:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 23:55:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-22 23:55:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:55:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:55:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-22 23:55:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-22 23:55:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-22 23:55:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-22 23:55:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-22 23:55:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-22 23:55:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:55:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:55:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-22 23:55:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-22 23:55:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-22 23:55:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-22 23:55:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-22 23:55:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-22 23:55:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-22 23:55:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-22 23:55:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-22 23:55:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-22 23:55:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-22 23:55:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-22 23:55:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-22 23:55:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-22 23:55:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-22 23:55:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-22 23:55:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-22 23:55:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-22 23:55:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-22 23:55:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-22 23:55:45,282 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:55:45,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:55:48,571 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:56:41,659 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:56:41,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:56:41,684 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 23:56:41,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:56:41 BoogieIcfgContainer [2022-07-22 23:56:41,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:56:41,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:56:41,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:56:41,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:56:41,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:55:38" (1/3) ... [2022-07-22 23:56:41,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e53e751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:56:41, skipping insertion in model container [2022-07-22 23:56:41,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:55:43" (2/3) ... [2022-07-22 23:56:41,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e53e751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:56:41, skipping insertion in model container [2022-07-22 23:56:41,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:56:41" (3/3) ... [2022-07-22 23:56:41,702 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-22 23:56:41,716 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:56:41,716 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:56:41,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:56:41,814 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@7d1d45c7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66f57852 [2022-07-22 23:56:41,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:56:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) [2022-07-22 23:56:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 23:56:41,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:41,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:41,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:41,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 26763159, now seen corresponding path program 1 times [2022-07-22 23:56:41,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:56:41,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256300375] [2022-07-22 23:56:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:41,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:56:41,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:56:41,867 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) [2022-07-22 23:56:41,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:56:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:47,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:56:47,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:56:47,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:56:47,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:56:47,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256300375] [2022-07-22 23:56:47,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256300375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:56:47,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:56:47,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:56:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129955066] [2022-07-22 23:56:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:47,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:56:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:56:47,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:56:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:56:47,806 INFO L87 Difference]: Start difference. First operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 23:56:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:48,140 INFO L93 Difference]: Finished difference Result 3558 states and 5060 transitions. [2022-07-22 23:56:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:56:48,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-22 23:56:48,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:48,167 INFO L225 Difference]: With dead ends: 3558 [2022-07-22 23:56:48,167 INFO L226 Difference]: Without dead ends: 1742 [2022-07-22 23:56:48,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:56:48,189 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:48,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:56:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-22 23:56:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-22 23:56:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1232 states have (on average 1.2962662337662338) internal successors, (1597), 1255 states have internal predecessors, (1597), 410 states have call successors, (410), 99 states have call predecessors, (410), 99 states have return successors, (410), 406 states have call predecessors, (410), 409 states have call successors, (410) [2022-07-22 23:56:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2417 transitions. [2022-07-22 23:56:48,336 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2417 transitions. Word has length 30 [2022-07-22 23:56:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:48,336 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2417 transitions. [2022-07-22 23:56:48,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 23:56:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2417 transitions. [2022-07-22 23:56:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 23:56:48,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:48,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:48,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 23:56:48,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:56:48,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:48,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114825, now seen corresponding path program 1 times [2022-07-22 23:56:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:56:48,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14456511] [2022-07-22 23:56:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:48,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:56:48,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:56:48,570 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) [2022-07-22 23:56:48,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:56:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:56:54,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:56:54,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:56:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:56:54,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:56:54,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14456511] [2022-07-22 23:56:54,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14456511] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:56:54,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:56:54,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 23:56:54,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835660429] [2022-07-22 23:56:54,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:56:54,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:56:54,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:56:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:56:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:56:54,820 INFO L87 Difference]: Start difference. First operand 1742 states and 2417 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 23:56:55,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:55,706 INFO L93 Difference]: Finished difference Result 3488 states and 4848 transitions. [2022-07-22 23:56:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 23:56:55,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-22 23:56:55,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:55,722 INFO L225 Difference]: With dead ends: 3488 [2022-07-22 23:56:55,723 INFO L226 Difference]: Without dead ends: 1753 [2022-07-22 23:56:55,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-22 23:56:55,734 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 14 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12018 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:55,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12018 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 23:56:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-07-22 23:56:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1751. [2022-07-22 23:56:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1240 states have (on average 1.2991935483870967) internal successors, (1611), 1263 states have internal predecessors, (1611), 410 states have call successors, (410), 100 states have call predecessors, (410), 100 states have return successors, (411), 406 states have call predecessors, (411), 409 states have call successors, (411) [2022-07-22 23:56:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2432 transitions. [2022-07-22 23:56:55,814 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2432 transitions. Word has length 31 [2022-07-22 23:56:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:55,814 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2432 transitions. [2022-07-22 23:56:55,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 23:56:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2432 transitions. [2022-07-22 23:56:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 23:56:55,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:55,818 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:56,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:56:56,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:56:56,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -384185321, now seen corresponding path program 2 times [2022-07-22 23:56:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:56:56,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522270325] [2022-07-22 23:56:56,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:56:56,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:56:56,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:56:56,053 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) [2022-07-22 23:56:56,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:57:00,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:57:00,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:57:01,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:57:01,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 23:57:01,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:01,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:01,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522270325] [2022-07-22 23:57:01,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522270325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:01,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:01,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:57:01,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920331044] [2022-07-22 23:57:01,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:57:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:57:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:01,514 INFO L87 Difference]: Start difference. First operand 1751 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 23:57:02,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:02,146 INFO L93 Difference]: Finished difference Result 5222 states and 7260 transitions. [2022-07-22 23:57:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:57:02,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-22 23:57:02,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:02,174 INFO L225 Difference]: With dead ends: 5222 [2022-07-22 23:57:02,175 INFO L226 Difference]: Without dead ends: 3479 [2022-07-22 23:57:02,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:02,190 INFO L413 NwaCegarLoop]: 2830 mSDtfsCounter, 2381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:02,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 5228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 23:57:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-22 23:57:02,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-22 23:57:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2461 states have (on average 1.2998780983340106) internal successors, (3199), 2506 states have internal predecessors, (3199), 816 states have call successors, (816), 199 states have call predecessors, (816), 199 states have return successors, (818), 809 states have call predecessors, (818), 815 states have call successors, (818) [2022-07-22 23:57:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4833 transitions. [2022-07-22 23:57:02,355 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4833 transitions. Word has length 34 [2022-07-22 23:57:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:02,356 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4833 transitions. [2022-07-22 23:57:02,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 23:57:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4833 transitions. [2022-07-22 23:57:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 23:57:02,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:02,359 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:57:02,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:02,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:02,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1036926639, now seen corresponding path program 1 times [2022-07-22 23:57:02,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:02,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963113741] [2022-07-22 23:57:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:02,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:02,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:02,594 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) [2022-07-22 23:57:02,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:57:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:08,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 5098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:57:08,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 23:57:08,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:08,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:08,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963113741] [2022-07-22 23:57:08,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963113741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:08,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:08,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:57:08,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998046180] [2022-07-22 23:57:08,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:08,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:57:08,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:08,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:57:08,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:57:08,559 INFO L87 Difference]: Start difference. First operand 3477 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 23:57:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:09,494 INFO L93 Difference]: Finished difference Result 10412 states and 14529 transitions. [2022-07-22 23:57:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:57:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-22 23:57:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:09,545 INFO L225 Difference]: With dead ends: 10412 [2022-07-22 23:57:09,545 INFO L226 Difference]: Without dead ends: 6938 [2022-07-22 23:57:09,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:57:09,570 INFO L413 NwaCegarLoop]: 2889 mSDtfsCounter, 2384 mSDsluCounter, 8188 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 11077 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:09,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 11077 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 23:57:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-22 23:57:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6928. [2022-07-22 23:57:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4901 states have (on average 1.29973474801061) internal successors, (6370), 4990 states have internal predecessors, (6370), 1629 states have call successors, (1629), 397 states have call predecessors, (1629), 397 states have return successors, (1669), 1616 states have call predecessors, (1669), 1628 states have call successors, (1669) [2022-07-22 23:57:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 9668 transitions. [2022-07-22 23:57:09,900 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 9668 transitions. Word has length 38 [2022-07-22 23:57:09,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:09,901 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 9668 transitions. [2022-07-22 23:57:09,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 23:57:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 9668 transitions. [2022-07-22 23:57:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-22 23:57:09,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:09,916 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-22 23:57:10,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:10,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:10,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:10,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash -915869094, now seen corresponding path program 1 times [2022-07-22 23:57:10,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:10,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63011957] [2022-07-22 23:57:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:10,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:10,138 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) [2022-07-22 23:57:10,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:57:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:16,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:57:16,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 23:57:16,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:16,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:16,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63011957] [2022-07-22 23:57:16,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63011957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:16,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:16,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:57:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923562623] [2022-07-22 23:57:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:16,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:57:16,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:57:16,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:16,160 INFO L87 Difference]: Start difference. First operand 6928 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-22 23:57:17,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:17,177 INFO L93 Difference]: Finished difference Result 19528 states and 27122 transitions. [2022-07-22 23:57:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:57:17,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2022-07-22 23:57:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:17,371 INFO L225 Difference]: With dead ends: 19528 [2022-07-22 23:57:17,371 INFO L226 Difference]: Without dead ends: 12608 [2022-07-22 23:57:17,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:17,405 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1987 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:17,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5221 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 23:57:17,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-07-22 23:57:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12486. [2022-07-22 23:57:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 8841 states have (on average 1.2943105983486032) internal successors, (11443), 9010 states have internal predecessors, (11443), 2899 states have call successors, (2899), 749 states have call predecessors, (2899), 745 states have return successors, (2969), 2862 states have call predecessors, (2969), 2898 states have call successors, (2969) [2022-07-22 23:57:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 17311 transitions. [2022-07-22 23:57:17,889 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 17311 transitions. Word has length 147 [2022-07-22 23:57:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:17,891 INFO L495 AbstractCegarLoop]: Abstraction has 12486 states and 17311 transitions. [2022-07-22 23:57:17,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-22 23:57:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 17311 transitions. [2022-07-22 23:57:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-22 23:57:17,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:17,909 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 23:57:18,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:18,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:18,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash 79837402, now seen corresponding path program 1 times [2022-07-22 23:57:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:18,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112165117] [2022-07-22 23:57:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:18,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:18,131 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) [2022-07-22 23:57:18,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:57:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:24,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:57:24,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 23:57:24,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:24,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:24,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112165117] [2022-07-22 23:57:24,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112165117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:24,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:24,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:57:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248735923] [2022-07-22 23:57:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:24,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:57:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:24,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:57:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:24,391 INFO L87 Difference]: Start difference. First operand 12486 states and 17311 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-22 23:57:25,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:25,480 INFO L93 Difference]: Finished difference Result 32612 states and 45079 transitions. [2022-07-22 23:57:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:57:25,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-22 23:57:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:25,621 INFO L225 Difference]: With dead ends: 32612 [2022-07-22 23:57:25,622 INFO L226 Difference]: Without dead ends: 20130 [2022-07-22 23:57:25,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:25,695 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 1753 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:25,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 6089 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 23:57:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20130 states. [2022-07-22 23:57:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20130 to 20096. [2022-07-22 23:57:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20096 states, 14259 states have (on average 1.2925170068027212) internal successors, (18430), 14535 states have internal predecessors, (18430), 4591 states have call successors, (4591), 1250 states have call predecessors, (4591), 1245 states have return successors, (4694), 4542 states have call predecessors, (4694), 4590 states have call successors, (4694) [2022-07-22 23:57:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20096 states to 20096 states and 27715 transitions. [2022-07-22 23:57:26,525 INFO L78 Accepts]: Start accepts. Automaton has 20096 states and 27715 transitions. Word has length 157 [2022-07-22 23:57:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:26,526 INFO L495 AbstractCegarLoop]: Abstraction has 20096 states and 27715 transitions. [2022-07-22 23:57:26,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-22 23:57:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 20096 states and 27715 transitions. [2022-07-22 23:57:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-22 23:57:26,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:26,548 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2022-07-22 23:57:26,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-22 23:57:26,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:26,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:26,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1663908607, now seen corresponding path program 1 times [2022-07-22 23:57:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:26,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290791176] [2022-07-22 23:57:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:26,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:26,778 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) [2022-07-22 23:57:26,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:57:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:32,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:57:32,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 23:57:33,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:33,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:33,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290791176] [2022-07-22 23:57:33,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290791176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:33,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:33,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:57:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047397382] [2022-07-22 23:57:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:33,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:57:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:57:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:33,211 INFO L87 Difference]: Start difference. First operand 20096 states and 27715 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 23:57:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:34,404 INFO L93 Difference]: Finished difference Result 48376 states and 66581 transitions. [2022-07-22 23:57:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:57:34,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-07-22 23:57:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:34,580 INFO L225 Difference]: With dead ends: 48376 [2022-07-22 23:57:34,581 INFO L226 Difference]: Without dead ends: 28288 [2022-07-22 23:57:34,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:57:34,685 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:34,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5433 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 23:57:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-22 23:57:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 28232. [2022-07-22 23:57:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 20059 states have (on average 1.2894959868388254) internal successors, (25866), 20451 states have internal predecessors, (25866), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:57:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 38737 transitions. [2022-07-22 23:57:35,954 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 38737 transitions. Word has length 173 [2022-07-22 23:57:35,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:35,956 INFO L495 AbstractCegarLoop]: Abstraction has 28232 states and 38737 transitions. [2022-07-22 23:57:35,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 23:57:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 38737 transitions. [2022-07-22 23:57:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-22 23:57:35,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:35,981 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:57:36,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:36,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:36,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1881706839, now seen corresponding path program 1 times [2022-07-22 23:57:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:36,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719308569] [2022-07-22 23:57:36,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:36,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:36,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:36,217 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) [2022-07-22 23:57:36,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:57:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:42,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 5629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:57:42,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 23:57:42,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:42,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:42,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719308569] [2022-07-22 23:57:42,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719308569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:42,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:57:42,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061646190] [2022-07-22 23:57:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:42,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:57:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:57:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:57:42,874 INFO L87 Difference]: Start difference. First operand 28232 states and 38737 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-22 23:57:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:44,906 INFO L93 Difference]: Finished difference Result 67128 states and 92145 transitions. [2022-07-22 23:57:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:57:44,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-22 23:57:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:45,048 INFO L225 Difference]: With dead ends: 67128 [2022-07-22 23:57:45,048 INFO L226 Difference]: Without dead ends: 38912 [2022-07-22 23:57:45,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:57:45,130 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 2472 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 11381 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:45,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 11381 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 23:57:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38912 states. [2022-07-22 23:57:46,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38912 to 28248. [2022-07-22 23:57:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:57:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-22 23:57:46,679 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 190 [2022-07-22 23:57:46,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:46,679 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-22 23:57:46,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-22 23:57:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-22 23:57:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-22 23:57:46,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:46,707 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-07-22 23:57:46,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:46,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:46,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash -355262749, now seen corresponding path program 1 times [2022-07-22 23:57:46,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:46,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365534747] [2022-07-22 23:57:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:46,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:46,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:46,941 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) [2022-07-22 23:57:46,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:57:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:54,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 5682 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:57:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-22 23:57:54,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:54,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:54,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365534747] [2022-07-22 23:57:54,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365534747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:54,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:54,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:57:54,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125922879] [2022-07-22 23:57:54,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:54,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:57:54,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:57:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:57:54,525 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-22 23:57:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:56,980 INFO L93 Difference]: Finished difference Result 67168 states and 92185 transitions. [2022-07-22 23:57:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:57:56,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2022-07-22 23:57:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:57,249 INFO L225 Difference]: With dead ends: 67168 [2022-07-22 23:57:57,249 INFO L226 Difference]: Without dead ends: 38936 [2022-07-22 23:57:57,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:57:57,364 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 2472 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:57:57,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 10485 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 23:57:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38936 states. [2022-07-22 23:57:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38936 to 28248. [2022-07-22 23:57:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:57:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-22 23:57:58,911 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 202 [2022-07-22 23:57:58,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:58,912 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-22 23:57:58,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-22 23:57:58,912 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-22 23:57:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-22 23:57:58,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:58,944 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-22 23:57:59,160 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-07-22 23:57:59,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:59,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:59,197 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:59,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:59,198 INFO L85 PathProgramCache]: Analyzing trace with hash -998761700, now seen corresponding path program 1 times [2022-07-22 23:57:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:59,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103811366] [2022-07-22 23:57:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:59,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:59,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:59,212 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) [2022-07-22 23:57:59,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 23:58:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:07,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 5959 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:07,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 23:58:08,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:08,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103811366] [2022-07-22 23:58:08,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103811366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:08,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:08,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 23:58:08,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920839717] [2022-07-22 23:58:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:08,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:08,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:08,039 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:58:09,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:09,058 INFO L93 Difference]: Finished difference Result 56480 states and 77488 transitions. [2022-07-22 23:58:09,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:09,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 241 [2022-07-22 23:58:09,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:09,232 INFO L225 Difference]: With dead ends: 56480 [2022-07-22 23:58:09,232 INFO L226 Difference]: Without dead ends: 28248 [2022-07-22 23:58:09,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:09,345 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:09,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2411 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:58:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2022-07-22 23:58:10,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 28248. [2022-07-22 23:58:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2888667496886674) internal successors, (25874), 20467 states have internal predecessors, (25874), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:58:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38745 transitions. [2022-07-22 23:58:10,612 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38745 transitions. Word has length 241 [2022-07-22 23:58:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:10,613 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38745 transitions. [2022-07-22 23:58:10,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:58:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38745 transitions. [2022-07-22 23:58:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-22 23:58:10,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:10,633 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:58:10,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-22 23:58:10,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:10,848 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:10,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:10,848 INFO L85 PathProgramCache]: Analyzing trace with hash 736352434, now seen corresponding path program 1 times [2022-07-22 23:58:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818728315] [2022-07-22 23:58:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:10,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:10,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:10,857 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) [2022-07-22 23:58:10,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-22 23:58:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:20,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 6015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:20,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 23:58:20,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:20,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818728315] [2022-07-22 23:58:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818728315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:20,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:58:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167302581] [2022-07-22 23:58:20,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:20,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:20,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:20,692 INFO L87 Difference]: Start difference. First operand 28248 states and 38745 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:21,457 INFO L93 Difference]: Finished difference Result 56488 states and 77488 transitions. [2022-07-22 23:58:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-22 23:58:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:21,580 INFO L225 Difference]: With dead ends: 56488 [2022-07-22 23:58:21,580 INFO L226 Difference]: Without dead ends: 28256 [2022-07-22 23:58:21,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:21,671 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:21,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:58:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-22 23:58:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-22 23:58:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.288751680525818) internal successors, (25882), 20475 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:58:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38753 transitions. [2022-07-22 23:58:22,886 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38753 transitions. Word has length 253 [2022-07-22 23:58:22,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:22,887 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38753 transitions. [2022-07-22 23:58:22,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:22,887 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38753 transitions. [2022-07-22 23:58:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-22 23:58:22,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:22,904 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:58:23,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-22 23:58:23,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:23,124 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:23,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1263746484, now seen corresponding path program 1 times [2022-07-22 23:58:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:23,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104649431] [2022-07-22 23:58:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:23,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:23,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:23,131 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) [2022-07-22 23:58:23,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-22 23:58:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:33,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:33,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:34,128 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 23:58:34,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:34,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:34,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104649431] [2022-07-22 23:58:34,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104649431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:34,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:34,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 23:58:34,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191681346] [2022-07-22 23:58:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:34,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:34,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:34,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:34,131 INFO L87 Difference]: Start difference. First operand 28256 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:35,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:35,069 INFO L93 Difference]: Finished difference Result 56496 states and 77632 transitions. [2022-07-22 23:58:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:35,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-22 23:58:35,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:35,206 INFO L225 Difference]: With dead ends: 56496 [2022-07-22 23:58:35,207 INFO L226 Difference]: Without dead ends: 28256 [2022-07-22 23:58:35,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:35,331 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2338 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:35,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 2404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:58:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-22 23:58:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-22 23:58:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.2857640790718519) internal successors, (25822), 20475 states have internal predecessors, (25822), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-22 23:58:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38693 transitions. [2022-07-22 23:58:36,439 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38693 transitions. Word has length 253 [2022-07-22 23:58:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:36,439 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38693 transitions. [2022-07-22 23:58:36,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38693 transitions. [2022-07-22 23:58:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-22 23:58:36,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:36,457 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:58:36,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-22 23:58:36,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:36,671 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:36,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1912339254, now seen corresponding path program 1 times [2022-07-22 23:58:36,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:36,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3472296] [2022-07-22 23:58:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:36,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:36,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:36,678 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) [2022-07-22 23:58:36,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-22 23:58:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:47,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 23:58:47,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 23:58:48,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:48,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:48,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3472296] [2022-07-22 23:58:48,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3472296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:48,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:48,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 23:58:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797663226] [2022-07-22 23:58:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:48,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:58:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:58:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:58:48,573 INFO L87 Difference]: Start difference. First operand 28256 states and 38693 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:51,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:58:53,605 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 [] [2022-07-22 23:58:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:56,093 INFO L93 Difference]: Finished difference Result 60436 states and 83406 transitions. [2022-07-22 23:58:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 23:58:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-22 23:58:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:56,501 INFO L225 Difference]: With dead ends: 60436 [2022-07-22 23:58:56,502 INFO L226 Difference]: Without dead ends: 32196 [2022-07-22 23:58:56,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:58:56,614 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 2280 mSDsluCounter, 16453 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:56,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 19384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-07-22 23:58:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32196 states. [2022-07-22 23:58:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32196 to 28312. [2022-07-22 23:58:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 20131 states have (on average 1.285082708260891) internal successors, (25870), 20523 states have internal predecessors, (25870), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1813 states have return successors, (6552), 6310 states have call predecessors, (6552), 6366 states have call successors, (6552) [2022-07-22 23:58:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 38789 transitions. [2022-07-22 23:58:57,762 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 38789 transitions. Word has length 253 [2022-07-22 23:58:57,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:57,763 INFO L495 AbstractCegarLoop]: Abstraction has 28312 states and 38789 transitions. [2022-07-22 23:58:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:58:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 38789 transitions. [2022-07-22 23:58:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-22 23:58:57,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:57,785 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:58:57,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-22 23:58:57,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:58,000 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2144538835, now seen corresponding path program 1 times [2022-07-22 23:58:58,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:58,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251437509] [2022-07-22 23:58:58,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:58,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:58,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:58,007 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) [2022-07-22 23:58:58,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-22 23:59:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:59:09,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 6034 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 23:59:09,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:59:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 23:59:09,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:59:09,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:59:09,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251437509] [2022-07-22 23:59:09,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251437509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:59:09,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:59:09,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:59:09,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897432258] [2022-07-22 23:59:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:59:09,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:59:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:59:09,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:59:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:59:09,888 INFO L87 Difference]: Start difference. First operand 28312 states and 38789 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-22 23:59:12,575 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 [] [2022-07-22 23:59:14,699 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 [] [2022-07-22 23:59:15,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:59:15,846 INFO L93 Difference]: Finished difference Result 56528 states and 77476 transitions. [2022-07-22 23:59:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:59:15,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 259 [2022-07-22 23:59:15,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:59:16,016 INFO L225 Difference]: With dead ends: 56528 [2022-07-22 23:59:16,016 INFO L226 Difference]: Without dead ends: 28232 [2022-07-22 23:59:16,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:59:16,142 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 7 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14435 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:59:16,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14435 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-07-22 23:59:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28232 states. [2022-07-22 23:59:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28232 to 28200. [2022-07-22 23:59:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 20043 states have (on average 1.284139100932994) internal successors, (25738), 20435 states have internal predecessors, (25738), 6347 states have call successors, (6347), 1806 states have call predecessors, (6347), 1809 states have return successors, (6532), 6290 states have call predecessors, (6532), 6346 states have call successors, (6532) [2022-07-22 23:59:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 38617 transitions. [2022-07-22 23:59:17,276 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 38617 transitions. Word has length 259 [2022-07-22 23:59:17,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:59:17,277 INFO L495 AbstractCegarLoop]: Abstraction has 28200 states and 38617 transitions. [2022-07-22 23:59:17,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-22 23:59:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 38617 transitions. [2022-07-22 23:59:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-22 23:59:17,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:59:17,299 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:59:17,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-22 23:59:17,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:59:17,520 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:59:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:59:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash -770997336, now seen corresponding path program 1 times [2022-07-22 23:59:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:59:17,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613297730] [2022-07-22 23:59:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:59:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:59:17,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:59:17,529 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) [2022-07-22 23:59:17,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-22 23:59:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:59:24,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 5948 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:59:24,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:59:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-22 23:59:28,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:59:28,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:59:28,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613297730] [2022-07-22 23:59:28,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613297730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:59:28,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:59:28,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:59:28,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687381251] [2022-07-22 23:59:28,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:59:28,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:59:28,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:59:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:59:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:59:28,247 INFO L87 Difference]: Start difference. First operand 28200 states and 38617 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29)