./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:29:27,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:29:27,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:29:27,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:29:27,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:29:27,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:29:27,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:29:27,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:29:27,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:29:27,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:29:27,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:29:27,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:29:27,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:29:27,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:29:27,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:29:27,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:29:27,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:29:27,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:29:27,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:29:27,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:29:27,524 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:29:27,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:29:27,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:29:27,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:29:27,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:29:27,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:29:27,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:29:27,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:29:27,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:29:27,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:29:27,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:29:27,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:29:27,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:29:27,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:29:27,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:29:27,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:29:27,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:29:27,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:29:27,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:29:27,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:29:27,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:29:27,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:29:27,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:29:27,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:29:27,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:29:27,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:29:27,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:29:27,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:29:27,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:29:27,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:29:27,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:29:27,576 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:29:27,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:29:27,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:29:27,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:29:27,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:29:27,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:29:27,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:29:27,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:29:27,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:29:27,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:29:27,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:29:27,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:29:27,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:29:27,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:29:27,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:29:27,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:29:27,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:29:27,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:29:27,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:29:27,581 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:29:27,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:29:27,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:29:27,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-19 23:29:27,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:29:27,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:29:27,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:29:27,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:29:27,864 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:29:27,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-19 23:29:27,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ae0813/939749c2ce694825bff08f607e6ed727/FLAG28add5f96 [2022-07-19 23:29:28,708 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:29:28,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-19 23:29:28,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ae0813/939749c2ce694825bff08f607e6ed727/FLAG28add5f96 [2022-07-19 23:29:28,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ae0813/939749c2ce694825bff08f607e6ed727 [2022-07-19 23:29:28,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:29:28,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:29:28,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:29:28,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:29:28,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:29:28,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:29:28" (1/1) ... [2022-07-19 23:29:28,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cbae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:28, skipping insertion in model container [2022-07-19 23:29:28,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:29:28" (1/1) ... [2022-07-19 23:29:28,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:29:29,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:29:29,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-19 23:29:30,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:29:30,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:29:31,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-19 23:29:31,164 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: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) [2022-07-19 23:29:31,171 INFO L158 Benchmark]: Toolchain (without parser) took 2235.04ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 54.7MB in the beginning and 79.3MB in the end (delta: -24.6MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-19 23:29:31,172 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:29:31,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2233.52ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 54.5MB in the beginning and 79.3MB in the end (delta: -24.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-19 23:29:31,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2233.52ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 54.5MB in the beginning and 79.3MB in the end (delta: -24.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:29:32,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:29:32,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:29:32,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:29:32,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:29:32,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:29:32,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:29:32,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:29:32,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:29:32,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:29:32,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:29:32,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:29:32,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:29:33,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:29:33,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:29:33,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:29:33,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:29:33,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:29:33,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:29:33,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:29:33,013 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:29:33,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:29:33,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:29:33,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:29:33,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:29:33,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:29:33,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:29:33,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:29:33,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:29:33,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:29:33,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:29:33,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:29:33,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:29:33,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:29:33,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:29:33,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:29:33,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:29:33,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:29:33,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:29:33,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:29:33,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:29:33,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:29:33,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:29:33,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:29:33,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:29:33,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:29:33,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:29:33,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:29:33,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:29:33,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:29:33,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:29:33,075 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:29:33,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:29:33,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:29:33,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:29:33,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:29:33,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:29:33,077 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:29:33,077 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:29:33,078 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:29:33,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:29:33,078 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:29:33,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:29:33,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:29:33,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:29:33,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:29:33,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:29:33,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:29:33,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:29:33,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:29:33,080 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:29:33,081 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:29:33,081 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:29:33,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:29:33,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:29:33,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:29:33,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-19 23:29:33,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:29:33,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:29:33,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:29:33,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:29:33,407 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:29:33,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-19 23:29:33,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705de75ea/f01734fcd3744f26be85c4fa4a94886d/FLAGca6d5f4bd [2022-07-19 23:29:34,229 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:29:34,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-19 23:29:34,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705de75ea/f01734fcd3744f26be85c4fa4a94886d/FLAGca6d5f4bd [2022-07-19 23:29:34,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705de75ea/f01734fcd3744f26be85c4fa4a94886d [2022-07-19 23:29:34,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:29:34,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:29:34,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:29:34,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:29:34,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:29:34,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:29:34" (1/1) ... [2022-07-19 23:29:34,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca466e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:34, skipping insertion in model container [2022-07-19 23:29:34,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:29:34" (1/1) ... [2022-07-19 23:29:34,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:29:34,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:29:35,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-19 23:29:36,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:29:36,923 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:29:37,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:29:37,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-19 23:29:37,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:29:37,349 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:29:37,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-19 23:29:37,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:29:37,976 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:29:37,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37 WrapperNode [2022-07-19 23:29:37,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:29:37,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:29:37,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:29:37,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:29:37,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,218 INFO L137 Inliner]: procedures = 330, calls = 2397, calls flagged for inlining = 150, calls inlined = 146, statements flattened = 5383 [2022-07-19 23:29:38,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:29:38,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:29:38,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:29:38,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:29:38,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:29:38,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:29:38,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:29:38,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:29:38,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (1/1) ... [2022-07-19 23:29:38,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:29:38,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:29:38,484 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) [2022-07-19 23:29:38,510 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 [2022-07-19 23:29:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-19 23:29:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-19 23:29:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:29:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2022-07-19 23:29:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2022-07-19 23:29:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ind_if_updown [2022-07-19 23:29:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ind_if_updown [2022-07-19 23:29:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 23:29:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_rx_complete [2022-07-19 23:29:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_rx_complete [2022-07-19 23:29:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_csr [2022-07-19 23:29:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_csr [2022-07-19 23:29:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:29:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:29:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_19 [2022-07-19 23:29:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_19 [2022-07-19 23:29:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:29:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:29:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:29:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:29:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-19 23:29:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-19 23:29:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-19 23:29:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-19 23:29:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure array_le32_to_cpu [2022-07-19 23:29:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure array_le32_to_cpu [2022-07-19 23:29:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-19 23:29:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-19 23:29:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:29:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:29:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-19 23:29:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-19 23:29:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-19 23:29:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv [2022-07-19 23:29:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv [2022-07-19 23:29:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_struct [2022-07-19 23:29:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_struct [2022-07-19 23:29:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:29:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:29:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wibro_send [2022-07-19 23:29:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wibro_send [2022-07-19 23:29:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-19 23:29:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-19 23:29:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:29:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:29:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:29:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:29:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_mac_addr [2022-07-19 23:29:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_mac_addr [2022-07-19 23:29:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-19 23:29:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-19 23:29:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_send_tx [2022-07-19 23:29:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_send_tx [2022-07-19 23:29:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___1 [2022-07-19 23:29:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___1 [2022-07-19 23:29:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_config [2022-07-19 23:29:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_config [2022-07-19 23:29:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_rcv_complete [2022-07-19 23:29:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_rcv_complete [2022-07-19 23:29:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:29:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:29:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2022-07-19 23:29:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2022-07-19 23:29:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_data [2022-07-19 23:29:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_data [2022-07-19 23:29:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-19 23:29:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-19 23:29:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-07-19 23:29:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-07-19 23:29:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-19 23:29:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-19 23:29:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:29:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:29:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:29:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-19 23:29:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-19 23:29:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:29:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-19 23:29:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-19 23:29:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure download_image [2022-07-19 23:29:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure download_image [2022-07-19 23:29:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:29:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:29:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:29:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:29:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:29:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:29:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:29:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-19 23:29:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-19 23:29:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:29:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-19 23:29:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-19 23:29:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-19 23:29:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-19 23:29:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-19 23:29:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:29:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 23:29:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-19 23:29:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-19 23:29:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 23:29:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 23:29:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 23:29:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:29:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:29:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:29:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:29:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-19 23:29:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-19 23:29:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry [2022-07-19 23:29:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry [2022-07-19 23:29:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:29:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:29:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-19 23:29:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-19 23:29:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv_cb [2022-07-19 23:29:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv_cb [2022-07-19 23:29:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_rcv [2022-07-19 23:29:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_rcv [2022-07-19 23:29:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-19 23:29:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-19 23:29:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-19 23:29:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-19 23:29:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-19 23:29:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-19 23:29:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tx_struct [2022-07-19 23:29:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tx_struct [2022-07-19 23:29:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:29:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:29:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-19 23:29:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-19 23:29:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_resume [2022-07-19 23:29:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_resume [2022-07-19 23:29:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-07-19 23:29:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-07-19 23:29:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-07-19 23:29:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:29:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:29:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure extract_qos_list [2022-07-19 23:29:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_qos_list [2022-07-19 23:29:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-19 23:29:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-19 23:29:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-19 23:29:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-19 23:29:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-19 23:29:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-19 23:29:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-19 23:29:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-19 23:29:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-19 23:29:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-19 23:29:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_recv_qos_hci_packet [2022-07-19 23:29:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_recv_qos_hci_packet [2022-07-19 23:29:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:29:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:29:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:29:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:29:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-19 23:29:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-19 23:29:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-19 23:29:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-19 23:29:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send_complete [2022-07-19 23:29:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send_complete [2022-07-19 23:29:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:29:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:29:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-07-19 23:29:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-19 23:29:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-19 23:29:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:29:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:29:38,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:29:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 23:29:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 23:29:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_disconnect [2022-07-19 23:29:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_disconnect [2022-07-19 23:29:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_netif_rx [2022-07-19 23:29:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_netif_rx [2022-07-19 23:29:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure send_qos_list [2022-07-19 23:29:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure send_qos_list [2022-07-19 23:29:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:29:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure kdelete [2022-07-19 23:29:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kdelete [2022-07-19 23:29:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_transmit_pkt [2022-07-19 23:29:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_transmit_pkt [2022-07-19 23:29:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-19 23:29:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-19 23:29:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:29:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-19 23:29:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-19 23:29:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure em_download_image [2022-07-19 23:29:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure em_download_image [2022-07-19 23:29:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:29:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:29:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:29:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:29:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:29:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:29:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:29:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_29 [2022-07-19 23:29:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_29 [2022-07-19 23:29:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rx_struct [2022-07-19 23:29:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rx_struct [2022-07-19 23:29:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_qos_release_list [2022-07-19 23:29:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_qos_release_list [2022-07-19 23:29:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 23:29:38,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 23:29:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 23:29:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 23:29:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-19 23:29:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-19 23:29:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-19 23:29:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-19 23:29:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_struct [2022-07-19 23:29:38,556 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_struct [2022-07-19 23:29:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure free_event_entry [2022-07-19 23:29:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure free_event_entry [2022-07-19 23:29:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-19 23:29:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-19 23:29:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_send [2022-07-19 23:29:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_send [2022-07-19 23:29:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure do_pm_control [2022-07-19 23:29:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pm_control [2022-07-19 23:29:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-19 23:29:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-19 23:29:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure __gdm_usb_send_complete [2022-07-19 23:29:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __gdm_usb_send_complete [2022-07-19 23:29:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-19 23:29:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-19 23:29:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_qos_entry [2022-07-19 23:29:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_qos_entry [2022-07-19 23:29:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send [2022-07-19 23:29:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send [2022-07-19 23:29:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:29:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure release_usb [2022-07-19 23:29:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure release_usb [2022-07-19 23:29:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ioctl [2022-07-19 23:29:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ioctl [2022-07-19 23:29:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_receive [2022-07-19 23:29:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_receive [2022-07-19 23:29:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-19 23:29:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-19 23:29:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_stats [2022-07-19 23:29:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_stats [2022-07-19 23:29:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry_list [2022-07-19 23:29:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry_list [2022-07-19 23:29:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:29:38,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:29:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure em_wait_ack [2022-07-19 23:29:38,605 INFO L138 BoogieDeclarations]: Found implementation of procedure em_wait_ack [2022-07-19 23:29:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-19 23:29:38,605 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-19 23:29:39,409 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:29:39,412 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:29:39,924 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:29:52,765 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___1FINAL: assume true; [2022-07-19 23:30:07,948 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:30:07,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:30:07,965 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 23:30:07,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:30:07 BoogieIcfgContainer [2022-07-19 23:30:07,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:30:07,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:30:07,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:30:07,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:30:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:29:34" (1/3) ... [2022-07-19 23:30:07,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a7e49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:30:07, skipping insertion in model container [2022-07-19 23:30:07,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:29:37" (2/3) ... [2022-07-19 23:30:07,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a7e49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:30:07, skipping insertion in model container [2022-07-19 23:30:07,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:30:07" (3/3) ... [2022-07-19 23:30:07,975 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-19 23:30:07,987 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:30:07,987 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:30:08,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:30:08,061 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@78d6170d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@535e780a [2022-07-19 23:30:08,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:30:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-19 23:30:08,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 23:30:08,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:08,082 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] [2022-07-19 23:30:08,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1607665857, now seen corresponding path program 1 times [2022-07-19 23:30:08,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:08,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388608081] [2022-07-19 23:30:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:08,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:08,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:08,107 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) [2022-07-19 23:30:08,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:30:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:09,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:30:09,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:30:09,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:09,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388608081] [2022-07-19 23:30:09,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388608081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:09,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:09,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:30:09,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011228070] [2022-07-19 23:30:09,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:09,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:30:09,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:30:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:30:09,683 INFO L87 Difference]: Start difference. First operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:30:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:09,982 INFO L93 Difference]: Finished difference Result 3764 states and 5509 transitions. [2022-07-19 23:30:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:30:09,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-07-19 23:30:09,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:10,015 INFO L225 Difference]: With dead ends: 3764 [2022-07-19 23:30:10,015 INFO L226 Difference]: Without dead ends: 1866 [2022-07-19 23:30:10,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:30:10,034 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8055 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:10,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8055 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:30:10,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-19 23:30:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2022-07-19 23:30:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1277 states have (on average 1.33672670321065) internal successors, (1707), 1314 states have internal predecessors, (1707), 481 states have call successors, (481), 108 states have call predecessors, (481), 107 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-19 23:30:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2663 transitions. [2022-07-19 23:30:10,206 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2663 transitions. Word has length 33 [2022-07-19 23:30:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:10,208 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2663 transitions. [2022-07-19 23:30:10,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:30:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2663 transitions. [2022-07-19 23:30:10,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 23:30:10,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:10,215 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] [2022-07-19 23:30:10,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:10,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:10,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:10,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1970633324, now seen corresponding path program 1 times [2022-07-19 23:30:10,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:10,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632830233] [2022-07-19 23:30:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:10,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:10,438 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) [2022-07-19 23:30:10,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:30:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:11,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:30:11,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:30:11,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:30:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:30:12,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:12,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632830233] [2022-07-19 23:30:12,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632830233] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:30:12,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:30:12,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-19 23:30:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193789741] [2022-07-19 23:30:12,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 23:30:12,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:30:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:30:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:30:12,156 INFO L87 Difference]: Start difference. First operand 1866 states and 2663 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 23:30:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:12,618 INFO L93 Difference]: Finished difference Result 3737 states and 5335 transitions. [2022-07-19 23:30:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 23:30:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2022-07-19 23:30:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:12,631 INFO L225 Difference]: With dead ends: 3737 [2022-07-19 23:30:12,631 INFO L226 Difference]: Without dead ends: 1875 [2022-07-19 23:30:12,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-19 23:30:12,642 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 10 mSDsluCounter, 7976 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10636 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:12,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10636 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:30:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-07-19 23:30:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-07-19 23:30:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1285 states have (on average 1.336964980544747) internal successors, (1718), 1322 states have internal predecessors, (1718), 481 states have call successors, (481), 109 states have call predecessors, (481), 108 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-19 23:30:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2674 transitions. [2022-07-19 23:30:12,714 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2674 transitions. Word has length 34 [2022-07-19 23:30:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:12,719 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2674 transitions. [2022-07-19 23:30:12,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 23:30:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2674 transitions. [2022-07-19 23:30:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 23:30:12,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:12,722 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] [2022-07-19 23:30:12,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:12,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:12,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:12,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 271918465, now seen corresponding path program 2 times [2022-07-19 23:30:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:12,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711825443] [2022-07-19 23:30:12,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:30:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:12,941 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) [2022-07-19 23:30:12,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:30:14,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-19 23:30:14,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:30:14,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:14,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 23:30:14,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:14,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:14,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711825443] [2022-07-19 23:30:14,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711825443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:14,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:30:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665636250] [2022-07-19 23:30:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:14,275 INFO L87 Difference]: Start difference. First operand 1875 states and 2674 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:30:14,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:14,587 INFO L93 Difference]: Finished difference Result 5567 states and 7947 transitions. [2022-07-19 23:30:14,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:14,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-07-19 23:30:14,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:14,608 INFO L225 Difference]: With dead ends: 5567 [2022-07-19 23:30:14,608 INFO L226 Difference]: Without dead ends: 3707 [2022-07-19 23:30:14,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:14,619 INFO L413 NwaCegarLoop]: 3157 mSDtfsCounter, 2622 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:14,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 5793 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:30:14,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-19 23:30:14,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3704. [2022-07-19 23:30:14,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3366180528182894) internal successors, (3391), 2606 states have internal predecessors, (3391), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-19 23:30:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5287 transitions. [2022-07-19 23:30:14,769 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5287 transitions. Word has length 37 [2022-07-19 23:30:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:14,770 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5287 transitions. [2022-07-19 23:30:14,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:30:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5287 transitions. [2022-07-19 23:30:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-19 23:30:14,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:14,774 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:14,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:14,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:14,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -240920598, now seen corresponding path program 1 times [2022-07-19 23:30:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:14,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197516640] [2022-07-19 23:30:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:14,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:14,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:15,001 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) [2022-07-19 23:30:15,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:30:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:16,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:16,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:16,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:16,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:16,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197516640] [2022-07-19 23:30:16,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197516640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:16,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:16,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:30:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039544811] [2022-07-19 23:30:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:16,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:16,318 INFO L87 Difference]: Start difference. First operand 3704 states and 5287 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-07-19 23:30:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:16,571 INFO L93 Difference]: Finished difference Result 3730 states and 5319 transitions. [2022-07-19 23:30:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 [2022-07-19 23:30:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:16,595 INFO L225 Difference]: With dead ends: 3730 [2022-07-19 23:30:16,595 INFO L226 Difference]: Without dead ends: 3717 [2022-07-19 23:30:16,598 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 [2022-07-19 23:30:16,600 INFO L413 NwaCegarLoop]: 2677 mSDtfsCounter, 2657 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:16,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2693 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:30:16,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-19 23:30:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3704. [2022-07-19 23:30:16,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3362238864800946) internal successors, (3390), 2606 states have internal predecessors, (3390), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-19 23:30:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5286 transitions. [2022-07-19 23:30:16,805 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5286 transitions. Word has length 54 [2022-07-19 23:30:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:16,806 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5286 transitions. [2022-07-19 23:30:16,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-07-19 23:30:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5286 transitions. [2022-07-19 23:30:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-19 23:30:16,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:16,808 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:16,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:17,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:17,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:17,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash -183662296, now seen corresponding path program 1 times [2022-07-19 23:30:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:17,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905371449] [2022-07-19 23:30:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:17,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:17,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:17,035 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) [2022-07-19 23:30:17,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:30:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:18,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:30:18,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:18,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:18,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:18,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905371449] [2022-07-19 23:30:18,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905371449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:18,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:18,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:30:18,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562394107] [2022-07-19 23:30:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:18,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:18,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:18,832 INFO L87 Difference]: Start difference. First operand 3704 states and 5286 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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) [2022-07-19 23:30:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:19,180 INFO L93 Difference]: Finished difference Result 11081 states and 16301 transitions. [2022-07-19 23:30:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:19,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 [2022-07-19 23:30:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:19,236 INFO L225 Difference]: With dead ends: 11081 [2022-07-19 23:30:19,236 INFO L226 Difference]: Without dead ends: 7392 [2022-07-19 23:30:19,261 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 [2022-07-19 23:30:19,262 INFO L413 NwaCegarLoop]: 3203 mSDtfsCounter, 2680 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:19,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 5900 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:30:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2022-07-19 23:30:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7381. [2022-07-19 23:30:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7381 states, 5057 states have (on average 1.335574451255685) internal successors, (6754), 5190 states have internal predecessors, (6754), 1894 states have call successors, (1894), 430 states have call predecessors, (1894), 429 states have return successors, (2130), 1840 states have call predecessors, (2130), 1888 states have call successors, (2130) [2022-07-19 23:30:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 10778 transitions. [2022-07-19 23:30:19,612 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 10778 transitions. Word has length 54 [2022-07-19 23:30:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:19,613 INFO L495 AbstractCegarLoop]: Abstraction has 7381 states and 10778 transitions. [2022-07-19 23:30:19,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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) [2022-07-19 23:30:19,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 10778 transitions. [2022-07-19 23:30:19,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 23:30:19,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:19,618 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:19,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:19,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:19,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:19,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:19,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1399472197, now seen corresponding path program 1 times [2022-07-19 23:30:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:19,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525934972] [2022-07-19 23:30:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:19,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:19,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:19,837 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) [2022-07-19 23:30:19,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:30:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:21,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:30:21,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:21,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:21,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:21,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525934972] [2022-07-19 23:30:21,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525934972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:21,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:21,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:30:21,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734939890] [2022-07-19 23:30:21,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:21,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:21,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:21,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:21,819 INFO L87 Difference]: Start difference. First operand 7381 states and 10778 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2022-07-19 23:30:22,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:22,424 INFO L93 Difference]: Finished difference Result 22104 states and 33467 transitions. [2022-07-19 23:30:22,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:22,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 55 [2022-07-19 23:30:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:22,540 INFO L225 Difference]: With dead ends: 22104 [2022-07-19 23:30:22,540 INFO L226 Difference]: Without dead ends: 14738 [2022-07-19 23:30:22,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:22,589 INFO L413 NwaCegarLoop]: 4481 mSDtfsCounter, 2658 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 7123 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:22,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 7123 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:30:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14738 states. [2022-07-19 23:30:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14738 to 14728. [2022-07-19 23:30:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14728 states, 10090 states have (on average 1.3341922695738355) internal successors, (13462), 10351 states have internal predecessors, (13462), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-19 23:30:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14728 states to 14728 states and 21902 transitions. [2022-07-19 23:30:23,349 INFO L78 Accepts]: Start accepts. Automaton has 14728 states and 21902 transitions. Word has length 55 [2022-07-19 23:30:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:23,350 INFO L495 AbstractCegarLoop]: Abstraction has 14728 states and 21902 transitions. [2022-07-19 23:30:23,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2022-07-19 23:30:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 14728 states and 21902 transitions. [2022-07-19 23:30:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 23:30:23,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:23,352 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:23,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:23,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:23,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -434868597, now seen corresponding path program 1 times [2022-07-19 23:30:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:23,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105963380] [2022-07-19 23:30:23,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:23,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:23,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:23,576 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) [2022-07-19 23:30:23,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:30:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:24,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:24,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:25,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:25,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:25,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105963380] [2022-07-19 23:30:25,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105963380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:25,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:25,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:30:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171819763] [2022-07-19 23:30:25,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:25,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:25,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:25,082 INFO L87 Difference]: Start difference. First operand 14728 states and 21902 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2022-07-19 23:30:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:25,428 INFO L93 Difference]: Finished difference Result 14736 states and 21909 transitions. [2022-07-19 23:30:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 56 [2022-07-19 23:30:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:25,506 INFO L225 Difference]: With dead ends: 14736 [2022-07-19 23:30:25,507 INFO L226 Difference]: Without dead ends: 14733 [2022-07-19 23:30:25,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:25,520 INFO L413 NwaCegarLoop]: 4505 mSDtfsCounter, 2655 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:25,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 7146 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:30:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2022-07-19 23:30:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14729. [2022-07-19 23:30:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14729 states, 10091 states have (on average 1.3341591517193538) internal successors, (13463), 10352 states have internal predecessors, (13463), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-19 23:30:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14729 states to 14729 states and 21903 transitions. [2022-07-19 23:30:26,263 INFO L78 Accepts]: Start accepts. Automaton has 14729 states and 21903 transitions. Word has length 56 [2022-07-19 23:30:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:26,263 INFO L495 AbstractCegarLoop]: Abstraction has 14729 states and 21903 transitions. [2022-07-19 23:30:26,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2022-07-19 23:30:26,264 INFO L276 IsEmpty]: Start isEmpty. Operand 14729 states and 21903 transitions. [2022-07-19 23:30:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 23:30:26,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:26,266 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:26,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:26,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:26,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash -596923202, now seen corresponding path program 1 times [2022-07-19 23:30:26,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:26,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586642542] [2022-07-19 23:30:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:26,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:26,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:26,483 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) [2022-07-19 23:30:26,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 23:30:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:27,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:27,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:27,923 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:27,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:27,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:27,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586642542] [2022-07-19 23:30:27,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586642542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:27,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:27,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:30:27,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759139521] [2022-07-19 23:30:27,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:27,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:27,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:27,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:27,925 INFO L87 Difference]: Start difference. First operand 14729 states and 21903 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2022-07-19 23:30:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:28,744 INFO L93 Difference]: Finished difference Result 44130 states and 67948 transitions. [2022-07-19 23:30:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:28,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 57 [2022-07-19 23:30:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:28,919 INFO L225 Difference]: With dead ends: 44130 [2022-07-19 23:30:28,920 INFO L226 Difference]: Without dead ends: 29416 [2022-07-19 23:30:28,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:28,999 INFO L413 NwaCegarLoop]: 3864 mSDtfsCounter, 2607 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 6557 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:28,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 6557 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:30:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29416 states. [2022-07-19 23:30:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29416 to 29403. [2022-07-19 23:30:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29403 states, 20137 states have (on average 1.3343099766598798) internal successors, (26869), 20654 states have internal predecessors, (26869), 7552 states have call successors, (7552), 1714 states have call predecessors, (7552), 1713 states have return successors, (10470), 7354 states have call predecessors, (10470), 7546 states have call successors, (10470) [2022-07-19 23:30:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29403 states to 29403 states and 44891 transitions. [2022-07-19 23:30:30,529 INFO L78 Accepts]: Start accepts. Automaton has 29403 states and 44891 transitions. Word has length 57 [2022-07-19 23:30:30,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:30,531 INFO L495 AbstractCegarLoop]: Abstraction has 29403 states and 44891 transitions. [2022-07-19 23:30:30,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2022-07-19 23:30:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 29403 states and 44891 transitions. [2022-07-19 23:30:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-19 23:30:30,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:30,536 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:30,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:30,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:30,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1325643794, now seen corresponding path program 1 times [2022-07-19 23:30:30,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:30,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620795464] [2022-07-19 23:30:30,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:30,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:30,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:30,754 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) [2022-07-19 23:30:30,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 23:30:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:31,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:31,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:32,195 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 23:30:32,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:32,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:32,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620795464] [2022-07-19 23:30:32,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620795464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:32,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:32,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:30:32,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119208574] [2022-07-19 23:30:32,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:32,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:32,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:32,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:32,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:32,197 INFO L87 Difference]: Start difference. First operand 29403 states and 44891 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2022-07-19 23:30:32,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:32,811 INFO L93 Difference]: Finished difference Result 29405 states and 44892 transitions. [2022-07-19 23:30:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:32,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 58 [2022-07-19 23:30:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:32,979 INFO L225 Difference]: With dead ends: 29405 [2022-07-19 23:30:32,980 INFO L226 Difference]: Without dead ends: 29391 [2022-07-19 23:30:33,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:33,011 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 2611 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 2660 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 [2022-07-19 23:30:33,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:30:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29391 states. [2022-07-19 23:30:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29391 to 29391. [2022-07-19 23:30:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29391 states, 20127 states have (on average 1.3342276543945943) internal successors, (26854), 20643 states have internal predecessors, (26854), 7550 states have call successors, (7550), 1714 states have call predecessors, (7550), 1713 states have return successors, (10469), 7353 states have call predecessors, (10469), 7545 states have call successors, (10469) [2022-07-19 23:30:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29391 states to 29391 states and 44873 transitions. [2022-07-19 23:30:34,480 INFO L78 Accepts]: Start accepts. Automaton has 29391 states and 44873 transitions. Word has length 58 [2022-07-19 23:30:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:34,482 INFO L495 AbstractCegarLoop]: Abstraction has 29391 states and 44873 transitions. [2022-07-19 23:30:34,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2022-07-19 23:30:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 29391 states and 44873 transitions. [2022-07-19 23:30:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 23:30:34,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:34,486 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:34,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:34,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:34,707 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash -446965858, now seen corresponding path program 1 times [2022-07-19 23:30:34,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:34,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111973887] [2022-07-19 23:30:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:34,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:34,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:34,712 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) [2022-07-19 23:30:34,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-19 23:30:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:36,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:36,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 23:30:36,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:36,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:36,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111973887] [2022-07-19 23:30:36,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111973887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:36,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:30:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715300930] [2022-07-19 23:30:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:36,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:36,198 INFO L87 Difference]: Start difference. First operand 29391 states and 44873 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 23:30:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:37,792 INFO L93 Difference]: Finished difference Result 81979 states and 125161 transitions. [2022-07-19 23:30:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:37,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-07-19 23:30:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:38,347 INFO L225 Difference]: With dead ends: 81979 [2022-07-19 23:30:38,347 INFO L226 Difference]: Without dead ends: 52601 [2022-07-19 23:30:38,458 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 [2022-07-19 23:30:38,459 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 2090 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:38,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 6928 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:30:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52601 states. [2022-07-19 23:30:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52601 to 52518. [2022-07-19 23:30:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52518 states, 36007 states have (on average 1.3371566639820034) internal successors, (48147), 37018 states have internal predecessors, (48147), 13309 states have call successors, (13309), 3202 states have call predecessors, (13309), 3201 states have return successors, (18736), 12905 states have call predecessors, (18736), 13304 states have call successors, (18736) [2022-07-19 23:30:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52518 states to 52518 states and 80192 transitions. [2022-07-19 23:30:40,782 INFO L78 Accepts]: Start accepts. Automaton has 52518 states and 80192 transitions. Word has length 77 [2022-07-19 23:30:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:40,782 INFO L495 AbstractCegarLoop]: Abstraction has 52518 states and 80192 transitions. [2022-07-19 23:30:40,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 23:30:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 52518 states and 80192 transitions. [2022-07-19 23:30:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 23:30:40,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:40,794 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-19 23:30:40,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:41,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:41,008 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:41,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash 545616422, now seen corresponding path program 1 times [2022-07-19 23:30:41,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:41,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512694200] [2022-07-19 23:30:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:41,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:41,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:41,013 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) [2022-07-19 23:30:41,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-19 23:30:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:42,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:42,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 23:30:42,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:42,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:42,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512694200] [2022-07-19 23:30:42,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512694200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:42,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:42,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:30:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949688006] [2022-07-19 23:30:42,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:42,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:42,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:42,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:42,364 INFO L87 Difference]: Start difference. First operand 52518 states and 80192 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:30:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:45,640 INFO L93 Difference]: Finished difference Result 147749 states and 231618 transitions. [2022-07-19 23:30:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2022-07-19 23:30:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:46,157 INFO L225 Difference]: With dead ends: 147749 [2022-07-19 23:30:46,158 INFO L226 Difference]: Without dead ends: 95246 [2022-07-19 23:30:46,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:46,347 INFO L413 NwaCegarLoop]: 3283 mSDtfsCounter, 2316 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:46,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5818 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 23:30:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95246 states. [2022-07-19 23:30:49,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95246 to 94613. [2022-07-19 23:30:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94613 states, 64652 states have (on average 1.333013673204232) internal successors, (86182), 66629 states have internal predecessors, (86182), 23918 states have call successors, (23918), 6043 states have call predecessors, (23918), 6042 states have return successors, (40241), 22980 states have call predecessors, (40241), 23913 states have call successors, (40241) [2022-07-19 23:30:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94613 states to 94613 states and 150341 transitions. [2022-07-19 23:30:50,551 INFO L78 Accepts]: Start accepts. Automaton has 94613 states and 150341 transitions. Word has length 96 [2022-07-19 23:30:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:30:50,552 INFO L495 AbstractCegarLoop]: Abstraction has 94613 states and 150341 transitions. [2022-07-19 23:30:50,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:30:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 94613 states and 150341 transitions. [2022-07-19 23:30:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-19 23:30:50,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:30:50,557 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:30:50,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-19 23:30:50,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:30:50,771 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:30:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:30:50,772 INFO L85 PathProgramCache]: Analyzing trace with hash 247342037, now seen corresponding path program 1 times [2022-07-19 23:30:50,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:30:50,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769448487] [2022-07-19 23:30:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:30:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:30:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:30:50,775 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) [2022-07-19 23:30:50,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-19 23:30:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:30:52,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:30:52,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:30:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 23:30:52,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:30:52,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:30:52,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769448487] [2022-07-19 23:30:52,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769448487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:30:52,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:30:52,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:30:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095368334] [2022-07-19 23:30:52,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:30:52,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:30:52,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:30:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:30:52,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:52,198 INFO L87 Difference]: Start difference. First operand 94613 states and 150341 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-19 23:30:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:30:57,175 INFO L93 Difference]: Finished difference Result 230619 states and 366719 transitions. [2022-07-19 23:30:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:30:57,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 111 [2022-07-19 23:30:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:30:58,162 INFO L225 Difference]: With dead ends: 230619 [2022-07-19 23:30:58,162 INFO L226 Difference]: Without dead ends: 136030 [2022-07-19 23:30:58,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:30:58,491 INFO L413 NwaCegarLoop]: 4702 mSDtfsCounter, 2557 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:30:58,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 6862 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:30:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136030 states. [2022-07-19 23:31:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136030 to 135907. [2022-07-19 23:31:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135907 states, 93100 states have (on average 1.3341783029001073) internal successors, (124212), 96035 states have internal predecessors, (124212), 33996 states have call successors, (33996), 8811 states have call predecessors, (33996), 8810 states have return successors, (57831), 32580 states have call predecessors, (57831), 33991 states have call successors, (57831) [2022-07-19 23:31:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135907 states to 135907 states and 216039 transitions. [2022-07-19 23:31:04,351 INFO L78 Accepts]: Start accepts. Automaton has 135907 states and 216039 transitions. Word has length 111 [2022-07-19 23:31:04,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:31:04,352 INFO L495 AbstractCegarLoop]: Abstraction has 135907 states and 216039 transitions. [2022-07-19 23:31:04,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-19 23:31:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 135907 states and 216039 transitions. [2022-07-19 23:31:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 23:31:04,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:04,358 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:04,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-19 23:31:04,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:31:04,571 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 377986603, now seen corresponding path program 1 times [2022-07-19 23:31:04,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:31:04,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212216593] [2022-07-19 23:31:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:04,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:31:04,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:31:04,575 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) [2022-07-19 23:31:04,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-19 23:31:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:06,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 23:31:06,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:31:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 23:31:06,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:31:06,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:31:06,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212216593] [2022-07-19 23:31:06,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212216593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:06,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:06,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:31:06,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312865135] [2022-07-19 23:31:06,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:06,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:31:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:31:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:31:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:06,198 INFO L87 Difference]: Start difference. First operand 135907 states and 216039 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10)