./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:51:46,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:51:46,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:51:46,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:51:46,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:51:46,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:51:46,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:51:46,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:51:46,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:51:46,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:51:46,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:51:46,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:51:46,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:51:46,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:51:46,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:51:46,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:51:46,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:51:46,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:51:46,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:51:46,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:51:46,486 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:51:46,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:51:46,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:51:46,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:51:46,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:51:46,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:51:46,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:51:46,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:51:46,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:51:46,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:51:46,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:51:46,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:51:46,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:51:46,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:51:46,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:51:46,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:51:46,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:51:46,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:51:46,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:51:46,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:51:46,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:51:46,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:51:46,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:51:46,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:51:46,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:51:46,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:51:46,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:51:46,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:51:46,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:51:46,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:51:46,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:51:46,538 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:51:46,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:51:46,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:51:46,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:51:46,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:51:46,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:51:46,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:51:46,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:51:46,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:51:46,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:51:46,542 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:51:46,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:51:46,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-12 13:51:46,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:51:46,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:51:46,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:51:46,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:51:46,800 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:51:46,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 13:51:46,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a23b7973/271e8a78512b41198a1a9847fadefb51/FLAG804e0eb87 [2022-07-12 13:51:47,661 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:51:47,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 13:51:47,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a23b7973/271e8a78512b41198a1a9847fadefb51/FLAG804e0eb87 [2022-07-12 13:51:48,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a23b7973/271e8a78512b41198a1a9847fadefb51 [2022-07-12 13:51:48,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:51:48,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:51:48,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:51:48,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:51:48,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:51:48,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:51:48" (1/1) ... [2022-07-12 13:51:48,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbc39ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:51:48, skipping insertion in model container [2022-07-12 13:51:48,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:51:48" (1/1) ... [2022-07-12 13:51:48,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:51:48,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:51:53,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-12 13:51:53,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:51:53,605 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:51:53,784 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) [2022-07-12 13:51:53,788 INFO L158 Benchmark]: Toolchain (without parser) took 5602.42ms. Allocated memory was 111.1MB in the beginning and 226.5MB in the end (delta: 115.3MB). Free memory was 75.5MB in the beginning and 136.8MB in the end (delta: -61.3MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2022-07-12 13:51:53,789 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.9MB in the beginning and 81.9MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:51:53,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5600.40ms. Allocated memory was 111.1MB in the beginning and 226.5MB in the end (delta: 115.3MB). Free memory was 75.5MB in the beginning and 136.8MB in the end (delta: -61.3MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2022-07-12 13:51:53,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.9MB in the beginning and 81.9MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5600.40ms. Allocated memory was 111.1MB in the beginning and 226.5MB in the end (delta: 115.3MB). Free memory was 75.5MB in the beginning and 136.8MB in the end (delta: -61.3MB). Peak memory consumption was 98.2MB. 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:51:55,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:51:55,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:51:55,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:51:55,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:51:55,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:51:55,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:51:55,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:51:55,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:51:55,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:51:55,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:51:55,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:51:55,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:51:55,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:51:55,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:51:55,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:51:55,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:51:55,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:51:55,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:51:55,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:51:55,302 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:51:55,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:51:55,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:51:55,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:51:55,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:51:55,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:51:55,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:51:55,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:51:55,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:51:55,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:51:55,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:51:55,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:51:55,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:51:55,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:51:55,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:51:55,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:51:55,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:51:55,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:51:55,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:51:55,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:51:55,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:51:55,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:51:55,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:51:55,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:51:55,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:51:55,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:51:55,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:51:55,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:51:55,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:51:55,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:51:55,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:51:55,362 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:51:55,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:51:55,363 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:51:55,364 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:51:55,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:51:55,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:51:55,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:51:55,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:51:55,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:51:55,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:51:55,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:51:55,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:51:55,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:51:55,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:51:55,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:51:55,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-12 13:51:55,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:51:55,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:51:55,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:51:55,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:51:55,666 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:51:55,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 13:51:55,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cc7c9e9/293807cb6d3a4eba8b83724772d71168/FLAGd66fc7a75 [2022-07-12 13:51:56,463 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:51:56,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 13:51:56,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cc7c9e9/293807cb6d3a4eba8b83724772d71168/FLAGd66fc7a75 [2022-07-12 13:51:56,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cc7c9e9/293807cb6d3a4eba8b83724772d71168 [2022-07-12 13:51:56,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:51:56,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:51:56,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:51:56,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:51:56,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:51:56,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:51:56" (1/1) ... [2022-07-12 13:51:56,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6683cf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:51:56, skipping insertion in model container [2022-07-12 13:51:56,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:51:56" (1/1) ... [2022-07-12 13:51:56,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:51:56,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:52:01,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-12 13:52:01,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:52:02,015 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:52:02,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:52:02,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-12 13:52:02,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:52:02,513 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:52:02,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-12 13:52:02,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:52:03,116 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:52:03,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03 WrapperNode [2022-07-12 13:52:03,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:52:03,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:52:03,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:52:03,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:52:03,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,495 INFO L137 Inliner]: procedures = 621, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7479 [2022-07-12 13:52:03,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:52:03,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:52:03,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:52:03,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:52:03,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:52:03,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:52:03,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:52:03,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:52:03,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (1/1) ... [2022-07-12 13:52:03,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:52:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:52:03,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:52:03,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:52:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-12 13:52:03,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-12 13:52:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-12 13:52:03,905 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-12 13:52:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-07-12 13:52:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-07-12 13:52:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 13:52:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 13:52:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 13:52:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:52:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:52:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-12 13:52:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-12 13:52:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 13:52:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 13:52:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:52:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:52:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-12 13:52:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-12 13:52:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 13:52:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 13:52:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 13:52:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 13:52:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 13:52:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 13:52:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:52:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:52:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-12 13:52:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-12 13:52:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-12 13:52:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-12 13:52:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-12 13:52:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-12 13:52:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 13:52:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 13:52:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 13:52:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 13:52:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 13:52:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 13:52:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-12 13:52:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-12 13:52:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:52:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:52:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 13:52:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 13:52:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:52:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 13:52:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:52:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:52:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:52:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 13:52:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 13:52:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 13:52:03,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 13:52:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 13:52:03,914 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 13:52:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-12 13:52:03,914 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-12 13:52:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 13:52:03,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 13:52:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 13:52:03,915 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 13:52:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-12 13:52:03,915 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-12 13:52:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 13:52:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 13:52:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-12 13:52:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-12 13:52:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 13:52:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 13:52:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 13:52:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 13:52:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:52:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:52:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-12 13:52:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-12 13:52:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-12 13:52:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-12 13:52:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 13:52:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 13:52:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:52:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:52:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:52:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:52:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 13:52:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 13:52:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 13:52:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 13:52:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:52:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:52:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:52:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:52:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:52:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 13:52:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 13:52:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 13:52:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 13:52:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 13:52:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 13:52:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 13:52:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 13:52:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-12 13:52:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-12 13:52:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 13:52:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 13:52:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 13:52:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 13:52:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:52:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-07-12 13:52:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-07-12 13:52:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-12 13:52:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-12 13:52:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 13:52:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 13:52:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:52:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:52:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 13:52:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 13:52:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:52:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 13:52:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 13:52:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-12 13:52:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-12 13:52:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:52:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:52:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:52:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 13:52:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 13:52:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 13:52:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 13:52:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 13:52:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-12 13:52:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-12 13:52:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-12 13:52:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-12 13:52:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:52:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:52:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:52:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:52:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 13:52:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 13:52:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:52:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:52:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:52:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:52:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 13:52:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 13:52:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:52:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:52:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-12 13:52:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-12 13:52:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 13:52:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 13:52:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 13:52:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 13:52:03,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 13:52:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 13:52:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:52:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:52:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:52:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-12 13:52:03,937 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-12 13:52:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:52:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-12 13:52:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-12 13:52:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-12 13:52:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-12 13:52:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:52:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-12 13:52:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-12 13:52:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 13:52:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 13:52:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 13:52:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 13:52:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 13:52:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 13:52:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 13:52:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 13:52:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 13:52:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:52:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:52:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 13:52:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 13:52:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-12 13:52:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-12 13:52:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-12 13:52:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-12 13:52:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 13:52:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 13:52:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 13:52:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 13:52:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 13:52:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 13:52:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-12 13:52:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-12 13:52:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 13:52:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 13:52:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-07-12 13:52:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-07-12 13:52:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 13:52:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 13:52:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-12 13:52:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-12 13:52:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-12 13:52:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-12 13:52:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:52:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:52:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-12 13:52:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-12 13:52:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 13:52:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-12 13:52:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-12 13:52:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-12 13:52:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:52:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:52:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-12 13:52:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-12 13:52:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-12 13:52:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-12 13:52:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-12 13:52:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-12 13:52:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:52:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:52:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 13:52:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 13:52:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 13:52:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 13:52:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-12 13:52:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-12 13:52:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-12 13:52:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-12 13:52:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 13:52:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 13:52:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-07-12 13:52:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-07-12 13:52:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-12 13:52:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-12 13:52:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-12 13:52:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-12 13:52:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-12 13:52:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-12 13:52:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-07-12 13:52:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-07-12 13:52:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 13:52:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 13:52:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 13:52:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 13:52:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 13:52:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 13:52:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-12 13:52:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-12 13:52:04,725 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:52:04,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:52:08,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:53:01,456 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:53:01,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:53:01,477 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 13:53:01,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:53:01 BoogieIcfgContainer [2022-07-12 13:53:01,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:53:01,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:53:01,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:53:01,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:53:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:51:56" (1/3) ... [2022-07-12 13:53:01,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c09dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:53:01, skipping insertion in model container [2022-07-12 13:53:01,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:52:03" (2/3) ... [2022-07-12 13:53:01,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c09dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:53:01, skipping insertion in model container [2022-07-12 13:53:01,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:53:01" (3/3) ... [2022-07-12 13:53:01,491 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 13:53:01,503 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:53:01,503 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:53:01,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:53:01,597 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@b964931, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42319125 [2022-07-12 13:53:01,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:53:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2022-07-12 13:53:01,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 13:53:01,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:01,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:53:01,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:01,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2022-07-12 13:53:01,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:01,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188332429] [2022-07-12 13:53:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:53:01,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:01,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:01,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:01,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:53:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:53:08,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 13:53:08,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:53:08,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:53:08,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:08,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188332429] [2022-07-12 13:53:08,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188332429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:53:08,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:53:08,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:53:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644237328] [2022-07-12 13:53:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:53:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 13:53:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:08,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 13:53:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:53:08,935 INFO L87 Difference]: Start difference. First operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 13:53:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:09,170 INFO L93 Difference]: Finished difference Result 3917 states and 5568 transitions. [2022-07-12 13:53:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 13:53:09,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-07-12 13:53:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:09,202 INFO L225 Difference]: With dead ends: 3917 [2022-07-12 13:53:09,203 INFO L226 Difference]: Without dead ends: 1917 [2022-07-12 13:53:09,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:53:09,221 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:09,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:53:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-07-12 13:53:09,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2022-07-12 13:53:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1328 states have (on average 1.2899096385542168) internal successors, (1713), 1358 states have internal predecessors, (1713), 471 states have call successors, (471), 118 states have call predecessors, (471), 117 states have return successors, (458), 456 states have call predecessors, (458), 458 states have call successors, (458) [2022-07-12 13:53:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2022-07-12 13:53:09,373 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2022-07-12 13:53:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:09,373 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2022-07-12 13:53:09,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 13:53:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2022-07-12 13:53:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 13:53:09,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:09,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:53:09,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:09,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:09,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:09,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2022-07-12 13:53:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:09,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553618560] [2022-07-12 13:53:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:53:09,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:09,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:09,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:53:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:53:17,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:53:17,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:53:17,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:53:17,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:17,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553618560] [2022-07-12 13:53:17,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553618560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:53:17,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:53:17,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:53:17,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710043689] [2022-07-12 13:53:17,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:53:17,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:53:17,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:17,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:53:17,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:53:17,377 INFO L87 Difference]: Start difference. First operand 1917 states and 2642 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 13:53:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:17,850 INFO L93 Difference]: Finished difference Result 3834 states and 5289 transitions. [2022-07-12 13:53:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:53:17,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-07-12 13:53:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:17,863 INFO L225 Difference]: With dead ends: 3834 [2022-07-12 13:53:17,863 INFO L226 Difference]: Without dead ends: 1920 [2022-07-12 13:53:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:53:17,873 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 6 mSDsluCounter, 10526 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13162 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:17,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13162 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 13:53:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-07-12 13:53:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1920. [2022-07-12 13:53:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1330 states have (on average 1.2902255639097744) internal successors, (1716), 1361 states have internal predecessors, (1716), 471 states have call successors, (471), 118 states have call predecessors, (471), 118 states have return successors, (459), 456 states have call predecessors, (459), 458 states have call successors, (459) [2022-07-12 13:53:17,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2646 transitions. [2022-07-12 13:53:17,933 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2646 transitions. Word has length 52 [2022-07-12 13:53:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:17,934 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2646 transitions. [2022-07-12 13:53:17,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 13:53:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2646 transitions. [2022-07-12 13:53:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 13:53:17,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:17,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:53:18,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:18,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:18,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:18,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash 601646586, now seen corresponding path program 1 times [2022-07-12 13:53:18,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:18,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364374740] [2022-07-12 13:53:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:53:18,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:18,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:18,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:53:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:53:26,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:53:26,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:53:26,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:53:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:53:27,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:27,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364374740] [2022-07-12 13:53:27,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364374740] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:53:27,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:53:27,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:53:27,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209783369] [2022-07-12 13:53:27,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:53:27,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:53:27,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:27,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:53:27,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:53:27,415 INFO L87 Difference]: Start difference. First operand 1920 states and 2646 transitions. Second operand has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 13:53:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:28,308 INFO L93 Difference]: Finished difference Result 3840 states and 5297 transitions. [2022-07-12 13:53:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:53:28,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2022-07-12 13:53:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:28,322 INFO L225 Difference]: With dead ends: 3840 [2022-07-12 13:53:28,323 INFO L226 Difference]: Without dead ends: 1923 [2022-07-12 13:53:28,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:53:28,336 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 15 mSDsluCounter, 15787 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18424 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:28,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18424 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 13:53:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-12 13:53:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1921. [2022-07-12 13:53:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1331 states have (on average 1.2907588279489106) internal successors, (1718), 1362 states have internal predecessors, (1718), 471 states have call successors, (471), 118 states have call predecessors, (471), 118 states have return successors, (459), 456 states have call predecessors, (459), 458 states have call successors, (459) [2022-07-12 13:53:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2648 transitions. [2022-07-12 13:53:28,407 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2648 transitions. Word has length 53 [2022-07-12 13:53:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:28,407 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2648 transitions. [2022-07-12 13:53:28,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 13:53:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2648 transitions. [2022-07-12 13:53:28,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 13:53:28,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:28,409 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 13:53:28,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:28,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:28,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash -62957263, now seen corresponding path program 2 times [2022-07-12 13:53:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:28,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860545146] [2022-07-12 13:53:28,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:53:28,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:28,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:28,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:28,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:53:35,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:53:35,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:53:36,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:53:36,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 13:53:36,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:53:36,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:36,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860545146] [2022-07-12 13:53:36,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860545146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:53:36,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:53:36,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:53:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159809454] [2022-07-12 13:53:36,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:53:36,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:53:36,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:36,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:53:36,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:53:36,611 INFO L87 Difference]: Start difference. First operand 1921 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 13:53:37,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:37,327 INFO L93 Difference]: Finished difference Result 5716 states and 7884 transitions. [2022-07-12 13:53:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:53:37,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-12 13:53:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:37,356 INFO L225 Difference]: With dead ends: 5716 [2022-07-12 13:53:37,356 INFO L226 Difference]: Without dead ends: 3805 [2022-07-12 13:53:37,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:53:37,370 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 2590 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:37,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 5849 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 13:53:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2022-07-12 13:53:37,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3797. [2022-07-12 13:53:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 2634 states have (on average 1.2896735003796507) internal successors, (3397), 2684 states have internal predecessors, (3397), 926 states have call successors, (926), 235 states have call predecessors, (926), 236 states have return successors, (915), 909 states have call predecessors, (915), 913 states have call successors, (915) [2022-07-12 13:53:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 5238 transitions. [2022-07-12 13:53:37,550 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 5238 transitions. Word has length 54 [2022-07-12 13:53:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:37,551 INFO L495 AbstractCegarLoop]: Abstraction has 3797 states and 5238 transitions. [2022-07-12 13:53:37,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 13:53:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 5238 transitions. [2022-07-12 13:53:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 13:53:37,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:37,553 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 13:53:37,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:37,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:37,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1975745629, now seen corresponding path program 1 times [2022-07-12 13:53:37,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:37,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901371093] [2022-07-12 13:53:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:53:37,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:37,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:37,778 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:37,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:53:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:53:46,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 5286 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:53:46,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:46,371 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:53:46,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:53:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 13:53:47,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:47,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901371093] [2022-07-12 13:53:47,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901371093] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:53:47,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:53:47,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:53:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914676216] [2022-07-12 13:53:47,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:53:47,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:53:47,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:47,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:53:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:53:47,697 INFO L87 Difference]: Start difference. First operand 3797 states and 5238 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 13:53:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:48,675 INFO L93 Difference]: Finished difference Result 7604 states and 10497 transitions. [2022-07-12 13:53:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:53:48,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 75 [2022-07-12 13:53:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:48,701 INFO L225 Difference]: With dead ends: 7604 [2022-07-12 13:53:48,702 INFO L226 Difference]: Without dead ends: 3807 [2022-07-12 13:53:48,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:53:48,722 INFO L413 NwaCegarLoop]: 2638 mSDtfsCounter, 25 mSDsluCounter, 10528 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 13166 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:48,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 13166 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 13:53:48,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-07-12 13:53:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3799. [2022-07-12 13:53:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 2636 states have (on average 1.2902124430955995) internal successors, (3401), 2686 states have internal predecessors, (3401), 926 states have call successors, (926), 235 states have call predecessors, (926), 236 states have return successors, (915), 909 states have call predecessors, (915), 913 states have call successors, (915) [2022-07-12 13:53:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5242 transitions. [2022-07-12 13:53:48,862 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5242 transitions. Word has length 75 [2022-07-12 13:53:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:48,862 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 5242 transitions. [2022-07-12 13:53:48,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 13:53:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5242 transitions. [2022-07-12 13:53:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 13:53:48,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:48,865 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:53:49,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:49,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:49,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:49,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -37348268, now seen corresponding path program 2 times [2022-07-12 13:53:49,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:49,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897376141] [2022-07-12 13:53:49,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:53:49,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:49,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:49,085 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:49,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:53:56,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:53:56,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:53:57,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 5145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:53:57,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:53:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-12 13:53:57,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:53:57,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:53:57,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897376141] [2022-07-12 13:53:57,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897376141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:53:57,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:53:57,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:53:57,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509145506] [2022-07-12 13:53:57,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:53:57,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:53:57,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:53:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:53:57,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:53:57,895 INFO L87 Difference]: Start difference. First operand 3799 states and 5242 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-12 13:53:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:53:58,111 INFO L93 Difference]: Finished difference Result 11357 states and 15682 transitions. [2022-07-12 13:53:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:53:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 76 [2022-07-12 13:53:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:53:58,163 INFO L225 Difference]: With dead ends: 11357 [2022-07-12 13:53:58,163 INFO L226 Difference]: Without dead ends: 7568 [2022-07-12 13:53:58,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:53:58,190 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 2578 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 5744 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:53:58,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 5744 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:53:58,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2022-07-12 13:53:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7552. [2022-07-12 13:53:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7552 states, 5249 states have (on average 1.2901505048580681) internal successors, (6772), 5338 states have internal predecessors, (6772), 1832 states have call successors, (1832), 468 states have call predecessors, (1832), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-12 13:53:58,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 10430 transitions. [2022-07-12 13:53:58,574 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 10430 transitions. Word has length 76 [2022-07-12 13:53:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:53:58,576 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 10430 transitions. [2022-07-12 13:53:58,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-12 13:53:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 10430 transitions. [2022-07-12 13:53:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 13:53:58,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:53:58,579 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:53:58,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:53:58,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:53:58,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:53:58,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:53:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash -525632627, now seen corresponding path program 1 times [2022-07-12 13:53:58,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:53:58,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692677830] [2022-07-12 13:53:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:53:58,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:53:58,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:53:58,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:53:58,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:54:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:54:06,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 13:54:06,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:54:06,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:54:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 13:54:08,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:08,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692677830] [2022-07-12 13:54:08,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692677830] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:54:08,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:54:08,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 13:54:08,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289905775] [2022-07-12 13:54:08,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:54:08,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 13:54:08,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 13:54:08,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:54:08,399 INFO L87 Difference]: Start difference. First operand 7552 states and 10430 transitions. Second operand has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 13:54:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:10,103 INFO L93 Difference]: Finished difference Result 15138 states and 20917 transitions. [2022-07-12 13:54:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 13:54:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2022-07-12 13:54:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:10,164 INFO L225 Difference]: With dead ends: 15138 [2022-07-12 13:54:10,165 INFO L226 Difference]: Without dead ends: 7580 [2022-07-12 13:54:10,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-12 13:54:10,197 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 26 mSDsluCounter, 26325 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28964 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:54:10,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28964 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 13:54:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2022-07-12 13:54:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7556. [2022-07-12 13:54:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 5253 states have (on average 1.2906910336950315) internal successors, (6780), 5342 states have internal predecessors, (6780), 1832 states have call successors, (1832), 468 states have call predecessors, (1832), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-12 13:54:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 10438 transitions. [2022-07-12 13:54:10,436 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 10438 transitions. Word has length 75 [2022-07-12 13:54:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:10,436 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 10438 transitions. [2022-07-12 13:54:10,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 13:54:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 10438 transitions. [2022-07-12 13:54:10,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 13:54:10,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:10,441 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:10,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:54:10,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:10,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:10,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1756240772, now seen corresponding path program 2 times [2022-07-12 13:54:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:10,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363675664] [2022-07-12 13:54:10,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:54:10,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:10,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:10,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:10,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 13:54:17,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:54:17,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:54:18,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:54:18,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:54:18,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:54:18,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:18,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363675664] [2022-07-12 13:54:18,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363675664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:54:18,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:54:18,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:54:18,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074668305] [2022-07-12 13:54:18,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:54:18,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:54:18,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:18,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:54:18,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:18,874 INFO L87 Difference]: Start difference. First operand 7556 states and 10438 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:18,974 INFO L93 Difference]: Finished difference Result 7558 states and 10439 transitions. [2022-07-12 13:54:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:54:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 76 [2022-07-12 13:54:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:19,054 INFO L225 Difference]: With dead ends: 7558 [2022-07-12 13:54:19,054 INFO L226 Difference]: Without dead ends: 7555 [2022-07-12 13:54:19,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:19,058 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 2583 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 2639 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 [2022-07-12 13:54:19,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 2639 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:54:19,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-07-12 13:54:19,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7555. [2022-07-12 13:54:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7555 states, 5253 states have (on average 1.2903102988768322) internal successors, (6778), 5341 states have internal predecessors, (6778), 1831 states have call successors, (1831), 468 states have call predecessors, (1831), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-12 13:54:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 10435 transitions. [2022-07-12 13:54:19,281 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 10435 transitions. Word has length 76 [2022-07-12 13:54:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:19,281 INFO L495 AbstractCegarLoop]: Abstraction has 7555 states and 10435 transitions. [2022-07-12 13:54:19,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 10435 transitions. [2022-07-12 13:54:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 13:54:19,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:19,285 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:19,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 13:54:19,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:19,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1391970591, now seen corresponding path program 1 times [2022-07-12 13:54:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:19,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882113051] [2022-07-12 13:54:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:54:19,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:19,521 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:19,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 13:54:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:54:27,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 5311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:54:27,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:54:28,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:54:28,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:28,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882113051] [2022-07-12 13:54:28,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882113051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:54:28,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:54:28,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:54:28,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641205893] [2022-07-12 13:54:28,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:54:28,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:54:28,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:54:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:28,093 INFO L87 Difference]: Start difference. First operand 7555 states and 10435 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:28,193 INFO L93 Difference]: Finished difference Result 7557 states and 10436 transitions. [2022-07-12 13:54:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:54:28,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2022-07-12 13:54:28,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:28,225 INFO L225 Difference]: With dead ends: 7557 [2022-07-12 13:54:28,226 INFO L226 Difference]: Without dead ends: 7554 [2022-07-12 13:54:28,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:28,232 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 2580 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 2637 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 [2022-07-12 13:54:28,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2580 Valid, 2637 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:54:28,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7554 states. [2022-07-12 13:54:28,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7554 to 7554. [2022-07-12 13:54:28,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7554 states, 5253 states have (on average 1.2899295640586332) internal successors, (6776), 5340 states have internal predecessors, (6776), 1830 states have call successors, (1830), 468 states have call predecessors, (1830), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-12 13:54:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 10432 transitions. [2022-07-12 13:54:28,495 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 10432 transitions. Word has length 77 [2022-07-12 13:54:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:28,496 INFO L495 AbstractCegarLoop]: Abstraction has 7554 states and 10432 transitions. [2022-07-12 13:54:28,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 10432 transitions. [2022-07-12 13:54:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 13:54:28,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:28,498 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:28,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 13:54:28,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:28,716 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:28,716 INFO L85 PathProgramCache]: Analyzing trace with hash -202270169, now seen corresponding path program 1 times [2022-07-12 13:54:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:28,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011151413] [2022-07-12 13:54:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:54:28,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:28,726 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:28,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 13:54:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:54:36,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 5312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:54:36,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:54:37,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:54:37,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:37,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011151413] [2022-07-12 13:54:37,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011151413] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:54:37,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:54:37,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:54:37,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988662347] [2022-07-12 13:54:37,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:54:37,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:54:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:54:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:37,203 INFO L87 Difference]: Start difference. First operand 7554 states and 10432 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:37,321 INFO L93 Difference]: Finished difference Result 7570 states and 10442 transitions. [2022-07-12 13:54:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:54:37,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 78 [2022-07-12 13:54:37,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:37,353 INFO L225 Difference]: With dead ends: 7570 [2022-07-12 13:54:37,354 INFO L226 Difference]: Without dead ends: 7566 [2022-07-12 13:54:37,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:37,361 INFO L413 NwaCegarLoop]: 2632 mSDtfsCounter, 2548 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:54:37,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2548 Valid, 2658 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:54:37,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2022-07-12 13:54:37,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 7564. [2022-07-12 13:54:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7564 states, 5261 states have (on average 1.2883482227713363) internal successors, (6778), 5346 states have internal predecessors, (6778), 1828 states have call successors, (1828), 472 states have call predecessors, (1828), 474 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-12 13:54:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 10432 transitions. [2022-07-12 13:54:37,609 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 10432 transitions. Word has length 78 [2022-07-12 13:54:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:37,610 INFO L495 AbstractCegarLoop]: Abstraction has 7564 states and 10432 transitions. [2022-07-12 13:54:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 10432 transitions. [2022-07-12 13:54:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 13:54:37,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:37,612 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:37,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 13:54:37,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:37,832 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:37,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1976257884, now seen corresponding path program 1 times [2022-07-12 13:54:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:37,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569020504] [2022-07-12 13:54:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:54:37,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:37,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:37,840 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:37,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 13:54:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:54:45,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:54:45,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:54:46,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:54:46,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:46,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569020504] [2022-07-12 13:54:46,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569020504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:54:46,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:54:46,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:54:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248872850] [2022-07-12 13:54:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:54:46,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:54:46,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:46,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:54:46,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:46,232 INFO L87 Difference]: Start difference. First operand 7564 states and 10432 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:46,582 INFO L93 Difference]: Finished difference Result 22624 states and 31471 transitions. [2022-07-12 13:54:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:54:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 79 [2022-07-12 13:54:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:46,651 INFO L225 Difference]: With dead ends: 22624 [2022-07-12 13:54:46,652 INFO L226 Difference]: Without dead ends: 15070 [2022-07-12 13:54:46,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:46,684 INFO L413 NwaCegarLoop]: 3279 mSDtfsCounter, 2583 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:54:46,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 5892 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:54:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15070 states. [2022-07-12 13:54:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15070 to 15048. [2022-07-12 13:54:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15048 states, 10472 states have (on average 1.2881016042780749) internal successors, (13489), 10638 states have internal predecessors, (13489), 3633 states have call successors, (3633), 937 states have call predecessors, (3633), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-12 13:54:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15048 states to 15048 states and 20888 transitions. [2022-07-12 13:54:47,193 INFO L78 Accepts]: Start accepts. Automaton has 15048 states and 20888 transitions. Word has length 79 [2022-07-12 13:54:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:47,194 INFO L495 AbstractCegarLoop]: Abstraction has 15048 states and 20888 transitions. [2022-07-12 13:54:47,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 15048 states and 20888 transitions. [2022-07-12 13:54:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 13:54:47,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:47,196 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:47,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 13:54:47,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:47,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:47,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1135297334, now seen corresponding path program 1 times [2022-07-12 13:54:47,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:47,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046536327] [2022-07-12 13:54:47,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:54:47,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:47,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:47,423 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:47,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 13:54:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:54:55,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 5314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:54:55,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:54:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:54:55,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:54:55,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:54:55,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046536327] [2022-07-12 13:54:55,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046536327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:54:55,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:54:55,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:54:55,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908039051] [2022-07-12 13:54:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:54:55,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:54:55,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:54:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:54:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:55,747 INFO L87 Difference]: Start difference. First operand 15048 states and 20888 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:54:56,009 INFO L93 Difference]: Finished difference Result 15050 states and 20889 transitions. [2022-07-12 13:54:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:54:56,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 80 [2022-07-12 13:54:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:54:56,074 INFO L225 Difference]: With dead ends: 15050 [2022-07-12 13:54:56,074 INFO L226 Difference]: Without dead ends: 15047 [2022-07-12 13:54:56,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:54:56,085 INFO L413 NwaCegarLoop]: 2631 mSDtfsCounter, 2571 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 2631 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 [2022-07-12 13:54:56,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 2631 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:54:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15047 states. [2022-07-12 13:54:56,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15047 to 15047. [2022-07-12 13:54:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15047 states, 10472 states have (on average 1.2879106187929716) internal successors, (13487), 10637 states have internal predecessors, (13487), 3632 states have call successors, (3632), 937 states have call predecessors, (3632), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-12 13:54:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15047 states to 15047 states and 20885 transitions. [2022-07-12 13:54:56,577 INFO L78 Accepts]: Start accepts. Automaton has 15047 states and 20885 transitions. Word has length 80 [2022-07-12 13:54:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:54:56,577 INFO L495 AbstractCegarLoop]: Abstraction has 15047 states and 20885 transitions. [2022-07-12 13:54:56,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:54:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 15047 states and 20885 transitions. [2022-07-12 13:54:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 13:54:56,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:54:56,579 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:54:56,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 13:54:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:54:56,792 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:54:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:54:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash -125926547, now seen corresponding path program 1 times [2022-07-12 13:54:56,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:54:56,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249467053] [2022-07-12 13:54:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:54:56,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:54:56,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:54:56,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:54:56,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 13:55:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:55:04,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:55:04,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:55:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 13:55:05,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:55:05,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:55:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249467053] [2022-07-12 13:55:05,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249467053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:55:05,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:55:05,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:55:05,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056401477] [2022-07-12 13:55:05,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:55:05,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:55:05,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:55:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:55:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:05,367 INFO L87 Difference]: Start difference. First operand 15047 states and 20885 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:55:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:55:05,634 INFO L93 Difference]: Finished difference Result 15049 states and 20886 transitions. [2022-07-12 13:55:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:55:05,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 82 [2022-07-12 13:55:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:55:05,692 INFO L225 Difference]: With dead ends: 15049 [2022-07-12 13:55:05,692 INFO L226 Difference]: Without dead ends: 15035 [2022-07-12 13:55:05,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:05,703 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 2567 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:55:05,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:55:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-07-12 13:55:06,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 15035. [2022-07-12 13:55:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15035 states, 10461 states have (on average 1.2878309913010229) internal successors, (13472), 10625 states have internal predecessors, (13472), 3631 states have call successors, (3631), 937 states have call predecessors, (3631), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-12 13:55:06,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15035 states to 15035 states and 20869 transitions. [2022-07-12 13:55:06,206 INFO L78 Accepts]: Start accepts. Automaton has 15035 states and 20869 transitions. Word has length 82 [2022-07-12 13:55:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:55:06,206 INFO L495 AbstractCegarLoop]: Abstraction has 15035 states and 20869 transitions. [2022-07-12 13:55:06,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 13:55:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 15035 states and 20869 transitions. [2022-07-12 13:55:06,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 13:55:06,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:55:06,210 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 13:55:06,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 13:55:06,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:55:06,435 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:55:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:55:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1733469006, now seen corresponding path program 1 times [2022-07-12 13:55:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:55:06,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085625936] [2022-07-12 13:55:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:55:06,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:55:06,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:55:06,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:55:06,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 13:55:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:55:14,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 5379 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:55:14,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:55:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 13:55:14,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:55:14,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:55:14,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085625936] [2022-07-12 13:55:14,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085625936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:55:14,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:55:14,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:55:14,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63787819] [2022-07-12 13:55:14,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:55:14,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:55:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:55:14,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:55:14,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:14,413 INFO L87 Difference]: Start difference. First operand 15035 states and 20869 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 13:55:15,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:55:15,585 INFO L93 Difference]: Finished difference Result 44737 states and 62121 transitions. [2022-07-12 13:55:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:55:15,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-12 13:55:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:55:15,705 INFO L225 Difference]: With dead ends: 44737 [2022-07-12 13:55:15,705 INFO L226 Difference]: Without dead ends: 29712 [2022-07-12 13:55:15,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:15,765 INFO L413 NwaCegarLoop]: 3090 mSDtfsCounter, 2552 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 5701 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:55:15,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 5701 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 13:55:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2022-07-12 13:55:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 29675. [2022-07-12 13:55:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29675 states, 20637 states have (on average 1.2888501235644716) internal successors, (26598), 20957 states have internal predecessors, (26598), 7175 states have call successors, (7175), 1849 states have call predecessors, (7175), 1862 states have return successors, (7446), 7124 states have call predecessors, (7446), 7166 states have call successors, (7446) [2022-07-12 13:55:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29675 states to 29675 states and 41219 transitions. [2022-07-12 13:55:16,878 INFO L78 Accepts]: Start accepts. Automaton has 29675 states and 41219 transitions. Word has length 103 [2022-07-12 13:55:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:55:16,878 INFO L495 AbstractCegarLoop]: Abstraction has 29675 states and 41219 transitions. [2022-07-12 13:55:16,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 13:55:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 29675 states and 41219 transitions. [2022-07-12 13:55:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 13:55:16,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:55:16,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:55:17,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 13:55:17,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:55:17,112 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:55:17,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:55:17,112 INFO L85 PathProgramCache]: Analyzing trace with hash -653991023, now seen corresponding path program 1 times [2022-07-12 13:55:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:55:17,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682344804] [2022-07-12 13:55:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:55:17,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:55:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:55:17,122 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:55:17,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 13:55:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:55:25,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 5502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:55:25,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:55:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 13:55:25,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:55:25,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:55:25,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682344804] [2022-07-12 13:55:25,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682344804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:55:25,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:55:25,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:55:25,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143321408] [2022-07-12 13:55:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:55:25,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:55:25,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:55:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:55:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:25,288 INFO L87 Difference]: Start difference. First operand 29675 states and 41219 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 13:55:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:55:27,561 INFO L93 Difference]: Finished difference Result 80476 states and 111600 transitions. [2022-07-12 13:55:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:55:27,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2022-07-12 13:55:27,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:55:27,851 INFO L225 Difference]: With dead ends: 80476 [2022-07-12 13:55:27,851 INFO L226 Difference]: Without dead ends: 50811 [2022-07-12 13:55:27,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:55:27,980 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 1863 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:55:27,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 5608 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 13:55:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50811 states. [2022-07-12 13:55:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50811 to 50751. [2022-07-12 13:55:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50751 states, 35293 states have (on average 1.2897741761822459) internal successors, (45520), 35897 states have internal predecessors, (45520), 12155 states have call successors, (12155), 3273 states have call predecessors, (12155), 3302 states have return successors, (12642), 12060 states have call predecessors, (12642), 12146 states have call successors, (12642) [2022-07-12 13:55:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50751 states to 50751 states and 70317 transitions. [2022-07-12 13:55:30,066 INFO L78 Accepts]: Start accepts. Automaton has 50751 states and 70317 transitions. Word has length 115 [2022-07-12 13:55:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:55:30,066 INFO L495 AbstractCegarLoop]: Abstraction has 50751 states and 70317 transitions. [2022-07-12 13:55:30,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 13:55:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 50751 states and 70317 transitions. [2022-07-12 13:55:30,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-12 13:55:30,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:55:30,078 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 13:55:30,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 13:55:30,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:55:30,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:55:30,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:55:30,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1618123476, now seen corresponding path program 1 times [2022-07-12 13:55:30,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:55:30,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894658531] [2022-07-12 13:55:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:55:30,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:55:30,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:55:30,292 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:55:30,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 13:55:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:55:39,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 5486 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:55:39,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:55:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-12 13:55:39,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:55:39,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:55:39,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894658531] [2022-07-12 13:55:39,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894658531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:55:39,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:55:39,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:55:39,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842801141] [2022-07-12 13:55:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:55:39,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:55:39,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:55:39,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:55:39,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 13:55:39,128 INFO L87 Difference]: Start difference. First operand 50751 states and 70317 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-12 13:55:41,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:55:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:55:43,183 INFO L93 Difference]: Finished difference Result 101620 states and 140910 transitions. [2022-07-12 13:55:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:55:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 139 [2022-07-12 13:55:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:55:43,517 INFO L225 Difference]: With dead ends: 101620 [2022-07-12 13:55:43,517 INFO L226 Difference]: Without dead ends: 50879 [2022-07-12 13:55:43,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:55:43,678 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 3 mSDsluCounter, 5246 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:55:43,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 13:55:43,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50879 states. [2022-07-12 13:55:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50879 to 50863. [2022-07-12 13:55:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50863 states, 35381 states have (on average 1.289957887001498) internal successors, (45640), 36009 states have internal predecessors, (45640), 12155 states have call successors, (12155), 3273 states have call predecessors, (12155), 3326 states have return successors, (12666), 12060 states have call predecessors, (12666), 12146 states have call successors, (12666) [2022-07-12 13:55:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50863 states to 50863 states and 70461 transitions. [2022-07-12 13:55:45,781 INFO L78 Accepts]: Start accepts. Automaton has 50863 states and 70461 transitions. Word has length 139 [2022-07-12 13:55:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:55:45,781 INFO L495 AbstractCegarLoop]: Abstraction has 50863 states and 70461 transitions. [2022-07-12 13:55:45,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-12 13:55:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand 50863 states and 70461 transitions. [2022-07-12 13:55:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 13:55:45,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:55:45,817 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 13:55:45,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 13:55:46,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:55:46,035 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:55:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:55:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1449074803, now seen corresponding path program 1 times [2022-07-12 13:55:46,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:55:46,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715620460] [2022-07-12 13:55:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:55:46,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:55:46,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:55:46,046 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:55:46,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 13:55:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:55:54,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 5810 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:55:54,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:55:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-12 13:55:54,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:55:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-12 13:55:55,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:55:55,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715620460] [2022-07-12 13:55:55,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715620460] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:55:55,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:55:55,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 13:55:55,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408872454] [2022-07-12 13:55:55,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:55:55,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:55:55,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:55:55,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:55:55,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:55:55,375 INFO L87 Difference]: Start difference. First operand 50863 states and 70461 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-12 13:55:57,472 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 []