./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:43:09,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:43:09,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:43:09,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:43:09,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:43:09,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:43:09,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:43:09,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:43:09,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:43:09,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:43:09,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:43:09,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:43:09,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:43:09,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:43:09,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:43:09,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:43:09,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:43:09,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:43:09,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:43:09,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:43:09,091 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:43:09,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:43:09,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:43:09,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:43:09,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:43:09,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:43:09,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:43:09,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:43:09,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:43:09,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:43:09,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:43:09,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:43:09,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:43:09,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:43:09,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:43:09,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:43:09,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:43:09,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:43:09,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:43:09,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:43:09,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:43:09,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:43:09,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:43:09,160 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:43:09,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:43:09,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:43:09,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:43:09,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:43:09,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:43:09,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:43:09,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:43:09,163 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:43:09,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:43:09,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:43:09,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:43:09,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:43:09,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:43:09,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:43:09,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:43:09,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:43:09,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:43:09,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:43:09,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:43:09,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:43:09,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:43:09,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:43:09,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:43:09,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:43:09,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:43:09,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:43:09,168 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:43:09,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:43:09,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:43:09,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-21 11:43:09,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:43:09,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:43:09,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:43:09,523 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:43:09,527 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:43:09,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:43:09,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07263fe78/23c6fdf451144cabb2bee2161880ca2b/FLAG353dbbe17 [2022-07-21 11:43:10,341 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:43:10,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:43:10,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07263fe78/23c6fdf451144cabb2bee2161880ca2b/FLAG353dbbe17 [2022-07-21 11:43:10,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07263fe78/23c6fdf451144cabb2bee2161880ca2b [2022-07-21 11:43:10,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:43:10,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:43:10,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:43:10,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:43:10,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:43:10,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:10" (1/1) ... [2022-07-21 11:43:10,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488e2400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:10, skipping insertion in model container [2022-07-21 11:43:10,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:10" (1/1) ... [2022-07-21 11:43:10,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:43:10,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:43:13,298 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-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-21 11:43:13,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:43:13,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:43:13,802 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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) [2022-07-21 11:43:13,809 INFO L158 Benchmark]: Toolchain (without parser) took 3192.29ms. Allocated memory was 52.4MB in the beginning and 134.2MB in the end (delta: 81.8MB). Free memory was 23.4MB in the beginning and 64.2MB in the end (delta: -40.8MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-07-21 11:43:13,810 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:43:13,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3189.31ms. Allocated memory was 52.4MB in the beginning and 134.2MB in the end (delta: 81.8MB). Free memory was 23.1MB in the beginning and 64.2MB in the end (delta: -41.1MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-07-21 11:43:13,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3189.31ms. Allocated memory was 52.4MB in the beginning and 134.2MB in the end (delta: 81.8MB). Free memory was 23.1MB in the beginning and 64.2MB in the end (delta: -41.1MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:43:15,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:43:15,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:43:15,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:43:15,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:43:15,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:43:15,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:43:15,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:43:15,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:43:15,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:43:15,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:43:15,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:43:15,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:43:15,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:43:15,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:43:15,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:43:15,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:43:15,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:43:15,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:43:15,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:43:15,500 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:43:15,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:43:15,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:43:15,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:43:15,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:43:15,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:43:15,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:43:15,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:43:15,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:43:15,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:43:15,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:43:15,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:43:15,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:43:15,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:43:15,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:43:15,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:43:15,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:43:15,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:43:15,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:43:15,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:43:15,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:43:15,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:43:15,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:43:15,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:43:15,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:43:15,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:43:15,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:43:15,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:43:15,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:43:15,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:43:15,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:43:15,557 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:43:15,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:43:15,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:43:15,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:43:15,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:43:15,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:43:15,559 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:43:15,559 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:43:15,559 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:43:15,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:43:15,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:43:15,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:43:15,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:43:15,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:43:15,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:43:15,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:43:15,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:43:15,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:43:15,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:43:15,561 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:43:15,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:43:15,562 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:43:15,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:43:15,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:43:15,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:43:15,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-21 11:43:15,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:43:15,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:43:15,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:43:15,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:43:15,912 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:43:15,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:43:15,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0802cbec/672f7ebe748446eeb022984c34798fd9/FLAGd7752b99a [2022-07-21 11:43:16,766 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:43:16,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:43:16,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0802cbec/672f7ebe748446eeb022984c34798fd9/FLAGd7752b99a [2022-07-21 11:43:17,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0802cbec/672f7ebe748446eeb022984c34798fd9 [2022-07-21 11:43:17,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:43:17,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:43:17,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:43:17,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:43:17,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:43:17,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:17" (1/1) ... [2022-07-21 11:43:17,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b301f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:17, skipping insertion in model container [2022-07-21 11:43:17,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:43:17" (1/1) ... [2022-07-21 11:43:17,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:43:17,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:43:19,738 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-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-21 11:43:19,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:43:19,878 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:43:20,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:43:20,305 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-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-21 11:43:20,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:43:20,348 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:43:20,835 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-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-21 11:43:20,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:43:21,024 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:43:21,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21 WrapperNode [2022-07-21 11:43:21,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:43:21,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:43:21,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:43:21,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:43:21,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,488 INFO L137 Inliner]: procedures = 445, calls = 5265, calls flagged for inlining = 154, calls inlined = 136, statements flattened = 9918 [2022-07-21 11:43:21,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:43:21,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:43:21,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:43:21,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:43:21,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:21,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:43:21,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:43:21,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:43:21,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:43:21,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (1/1) ... [2022-07-21 11:43:22,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:43:22,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:43:22,028 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) [2022-07-21 11:43:22,046 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 [2022-07-21 11:43:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-21 11:43:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-21 11:43:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-21 11:43:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-21 11:43:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:43:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:43:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 11:43:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 11:43:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:43:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:43:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-21 11:43:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-21 11:43:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-21 11:43:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-21 11:43:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-21 11:43:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-21 11:43:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-21 11:43:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-21 11:43:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-21 11:43:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-21 11:43:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-21 11:43:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:43:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:43:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-21 11:43:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-21 11:43:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-21 11:43:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-21 11:43:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:43:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:43:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-21 11:43:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-21 11:43:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:43:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:43:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 11:43:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 11:43:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:43:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:43:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:43:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:43:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-21 11:43:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-21 11:43:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:43:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-21 11:43:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-21 11:43:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-21 11:43:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-21 11:43:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-21 11:43:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-21 11:43:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-21 11:43:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-21 11:43:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-21 11:43:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-21 11:43:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:43:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:43:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-21 11:43:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-21 11:43:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-21 11:43:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-21 11:43:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-21 11:43:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-21 11:43:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-21 11:43:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-21 11:43:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-21 11:43:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-21 11:43:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:43:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:43:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-21 11:43:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-21 11:43:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:43:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:43:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-21 11:43:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-21 11:43:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-21 11:43:22,075 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-21 11:43:22,075 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-21 11:43:22,075 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-21 11:43:22,075 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-21 11:43:22,075 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-21 11:43:22,075 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-21 11:43:22,075 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-21 11:43:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-21 11:43:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-21 11:43:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-21 11:43:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 11:43:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 11:43:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 11:43:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 11:43:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-21 11:43:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-21 11:43:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:43:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:43:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-21 11:43:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-21 11:43:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-21 11:43:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-21 11:43:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-21 11:43:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-21 11:43:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-21 11:43:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-21 11:43:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:43:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-21 11:43:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-21 11:43:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-21 11:43:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-21 11:43:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:43:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:43:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:43:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:43:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:43:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-21 11:43:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-21 11:43:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:43:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-21 11:43:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-21 11:43:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-21 11:43:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-21 11:43:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-21 11:43:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-21 11:43:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-21 11:43:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-21 11:43:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-21 11:43:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-21 11:43:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-21 11:43:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-21 11:43:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-21 11:43:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-21 11:43:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-21 11:43:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-21 11:43:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-21 11:43:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-21 11:43:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-21 11:43:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-21 11:43:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-21 11:43:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-21 11:43:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-21 11:43:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-21 11:43:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 11:43:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 11:43:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:43:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:43:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:43:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:43:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:43:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-21 11:43:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-21 11:43:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-21 11:43:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-21 11:43:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:43:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:43:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:43:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:43:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:43:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 11:43:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 11:43:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:43:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-21 11:43:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-21 11:43:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-21 11:43:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-21 11:43:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-21 11:43:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-21 11:43:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:43:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:43:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-21 11:43:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-21 11:43:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:43:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:43:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-21 11:43:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-21 11:43:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-21 11:43:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-21 11:43:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:43:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:43:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:43:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:43:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 11:43:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 11:43:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 11:43:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 11:43:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-21 11:43:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-21 11:43:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-21 11:43:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-21 11:43:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-21 11:43:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-21 11:43:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:43:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-21 11:43:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-21 11:43:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-21 11:43:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-21 11:43:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:43:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 11:43:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 11:43:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-21 11:43:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-21 11:43:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-21 11:43:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-21 11:43:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:43:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:43:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-21 11:43:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-21 11:43:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-21 11:43:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-21 11:43:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:43:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-21 11:43:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-21 11:43:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:43:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:43:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-21 11:43:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-21 11:43:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-21 11:43:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-21 11:43:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:43:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:43:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 11:43:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 11:43:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-21 11:43:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-21 11:43:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-21 11:43:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-21 11:43:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-21 11:43:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-21 11:43:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-21 11:43:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-21 11:43:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-21 11:43:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-21 11:43:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-21 11:43:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-21 11:43:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-21 11:43:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-21 11:43:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-21 11:43:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-21 11:43:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-21 11:43:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-21 11:43:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-21 11:43:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-21 11:43:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:43:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:43:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-21 11:43:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-21 11:43:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-21 11:43:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-21 11:43:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-21 11:43:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-21 11:43:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-21 11:43:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-21 11:43:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 11:43:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 11:43:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-21 11:43:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-21 11:43:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 11:43:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 11:43:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-21 11:43:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-21 11:43:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-21 11:43:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-21 11:43:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 11:43:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 11:43:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 11:43:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 11:43:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-21 11:43:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-21 11:43:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-21 11:43:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-21 11:43:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-21 11:43:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-21 11:43:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-21 11:43:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-21 11:43:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-21 11:43:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-21 11:43:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:43:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:43:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 11:43:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 11:43:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-21 11:43:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-21 11:43:23,144 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:43:23,147 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:43:24,230 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0bv64 != ~tmp___1~2;#res := ~ret~3; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0bv64 != ~tmp___1~2);#res := ~ret~3; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-21 11:43:24,487 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16bv32 == ~size; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10bv32 == ~size; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2bv32 == ~size; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8bv32 == ~size; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := ~tmp___2~1[32:0]; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843: SUMMARY for call #t~ret123 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4bv32 == ~size; [2022-07-21 11:43:24,488 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: ~tmp___1~2 := #t~ret122;havoc #t~ret122; [2022-07-21 11:43:24,489 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833: SUMMARY for call #t~ret122 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:43:24,489 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: ~tmp___0~8 := #t~ret121;havoc #t~ret121; [2022-07-21 11:43:24,489 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821: SUMMARY for call #t~ret121 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:43:24,489 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2022-07-21 11:43:24,489 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 4bv32 == __copy_from_user_~size#1; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 8bv32 == __copy_from_user_~size#1; [2022-07-21 11:44:50,043 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 10bv32 == __copy_from_user_~size#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 16bv32 == __copy_from_user_~size#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret116#1;havoc __copy_from_user_#t~ret116#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761: SUMMARY for call __copy_from_user_#t~ret116#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2022-07-21 11:44:50,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774: SUMMARY for call __copy_from_user_#t~ret117#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774-1: __copy_from_user_~tmp___1~1#1 := __copy_from_user_#t~ret117#1;havoc __copy_from_user_#t~ret117#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume 0bv64 != __copy_from_user_~tmp___1~1#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume !(0bv64 != __copy_from_user_~tmp___1~1#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784: SUMMARY for call __copy_from_user_#t~ret118#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784-1: __copy_from_user_~tmp___2~0#1 := __copy_from_user_#t~ret118#1;havoc __copy_from_user_#t~ret118#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~0#1[32:0]; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 2bv32 == __copy_from_user_~size#1; [2022-07-21 11:44:50,045 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:44:50,233 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:44:50,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:44:50,266 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:44:50,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:44:50 BoogieIcfgContainer [2022-07-21 11:44:50,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:44:50,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:44:50,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:44:50,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:44:50,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:43:17" (1/3) ... [2022-07-21 11:44:50,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9d2965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:44:50, skipping insertion in model container [2022-07-21 11:44:50,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:43:21" (2/3) ... [2022-07-21 11:44:50,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9d2965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:44:50, skipping insertion in model container [2022-07-21 11:44:50,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:44:50" (3/3) ... [2022-07-21 11:44:50,283 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:44:50,296 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:44:50,297 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:44:50,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:44:50,417 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@33b1f9bb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@245106f8 [2022-07-21 11:44:50,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:44:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 3729 states, 2844 states have (on average 1.499648382559775) internal successors, (4265), 2934 states have internal predecessors, (4265), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) [2022-07-21 11:44:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-21 11:44:50,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:50,469 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:50,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:50,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash 676289931, now seen corresponding path program 1 times [2022-07-21 11:44:50,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:44:50,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776345081] [2022-07-21 11:44:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:50,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:44:50,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:44:50,503 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) [2022-07-21 11:44:50,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:44:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:56,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 11:44:56,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-21 11:44:56,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:44:56,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:44:56,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776345081] [2022-07-21 11:44:56,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776345081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:56,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:44:56,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:44:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742491933] [2022-07-21 11:44:56,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:56,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 11:44:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:44:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 11:44:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 11:44:56,979 INFO L87 Difference]: Start difference. First operand has 3729 states, 2844 states have (on average 1.499648382559775) internal successors, (4265), 2934 states have internal predecessors, (4265), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:44:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:57,254 INFO L93 Difference]: Finished difference Result 7453 states and 11552 transitions. [2022-07-21 11:44:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 11:44:57,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2022-07-21 11:44:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:57,295 INFO L225 Difference]: With dead ends: 7453 [2022-07-21 11:44:57,295 INFO L226 Difference]: Without dead ends: 3714 [2022-07-21 11:44:57,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 11:44:57,319 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5749 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 [2022-07-21 11:44:57,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5749 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:44:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-07-21 11:44:57,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2022-07-21 11:44:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 2839 states have (on average 1.4963015146178231) internal successors, (4248), 2919 states have internal predecessors, (4248), 742 states have call successors, (742), 133 states have call predecessors, (742), 132 states have return successors, (738), 720 states have call predecessors, (738), 738 states have call successors, (738) [2022-07-21 11:44:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5728 transitions. [2022-07-21 11:44:57,528 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5728 transitions. Word has length 193 [2022-07-21 11:44:57,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:57,529 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 5728 transitions. [2022-07-21 11:44:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:44:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5728 transitions. [2022-07-21 11:44:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-21 11:44:57,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:57,534 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:57,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:57,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:44:57,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:57,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:57,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2117889793, now seen corresponding path program 1 times [2022-07-21 11:44:57,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:44:57,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675638665] [2022-07-21 11:44:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:57,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:44:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:44:57,743 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) [2022-07-21 11:44:57,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:45:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:04,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:45:04,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-21 11:45:05,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:45:05,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:45:05,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675638665] [2022-07-21 11:45:05,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675638665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:45:05,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:45:05,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:45:05,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026000604] [2022-07-21 11:45:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:45:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:45:05,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:45:05,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:45:05,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:45:05,163 INFO L87 Difference]: Start difference. First operand 3714 states and 5728 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 11:45:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:45:07,958 INFO L93 Difference]: Finished difference Result 7418 states and 11477 transitions. [2022-07-21 11:45:07,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:45:07,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2022-07-21 11:45:07,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:45:07,988 INFO L225 Difference]: With dead ends: 7418 [2022-07-21 11:45:07,988 INFO L226 Difference]: Without dead ends: 3717 [2022-07-21 11:45:08,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:45:08,008 INFO L413 NwaCegarLoop]: 5692 mSDtfsCounter, 6 mSDsluCounter, 22697 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28389 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:45:08,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28389 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 11:45:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-21 11:45:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-07-21 11:45:08,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 2841 states have (on average 1.4963041182682155) internal successors, (4251), 2922 states have internal predecessors, (4251), 742 states have call successors, (742), 133 states have call predecessors, (742), 133 states have return successors, (744), 720 states have call predecessors, (744), 738 states have call successors, (744) [2022-07-21 11:45:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5737 transitions. [2022-07-21 11:45:08,147 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5737 transitions. Word has length 193 [2022-07-21 11:45:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:08,149 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5737 transitions. [2022-07-21 11:45:08,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 11:45:08,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5737 transitions. [2022-07-21 11:45:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-21 11:45:08,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:08,154 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:45:08,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:45:08,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:45:08,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:08,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2032450187, now seen corresponding path program 1 times [2022-07-21 11:45:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:45:08,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147889239] [2022-07-21 11:45:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:45:08,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:45:08,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:45:08,374 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) [2022-07-21 11:45:08,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:45:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:15,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 3127 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:45:15,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-21 11:45:16,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:45:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-21 11:45:17,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:45:17,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147889239] [2022-07-21 11:45:17,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147889239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:45:17,535 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:45:17,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 11:45:17,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610903228] [2022-07-21 11:45:17,536 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:45:17,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:45:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:45:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:45:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:45:17,538 INFO L87 Difference]: Start difference. First operand 3717 states and 5737 transitions. Second operand has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:45:21,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:45:21,932 INFO L93 Difference]: Finished difference Result 7429 states and 11501 transitions. [2022-07-21 11:45:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:45:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 200 [2022-07-21 11:45:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:45:21,961 INFO L225 Difference]: With dead ends: 7429 [2022-07-21 11:45:21,961 INFO L226 Difference]: Without dead ends: 3725 [2022-07-21 11:45:21,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:45:21,981 INFO L413 NwaCegarLoop]: 5694 mSDtfsCounter, 14 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39742 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:45:21,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39742 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 11:45:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3725 states. [2022-07-21 11:45:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3725 to 3723. [2022-07-21 11:45:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2845 states have (on average 1.495957820738137) internal successors, (4256), 2926 states have internal predecessors, (4256), 743 states have call successors, (743), 134 states have call predecessors, (743), 134 states have return successors, (745), 721 states have call predecessors, (745), 739 states have call successors, (745) [2022-07-21 11:45:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5744 transitions. [2022-07-21 11:45:22,119 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5744 transitions. Word has length 200 [2022-07-21 11:45:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:22,120 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5744 transitions. [2022-07-21 11:45:22,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:45:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5744 transitions. [2022-07-21 11:45:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-21 11:45:22,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:22,125 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:45:22,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:45:22,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:45:22,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:22,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:22,344 INFO L85 PathProgramCache]: Analyzing trace with hash 642298943, now seen corresponding path program 2 times [2022-07-21 11:45:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:45:22,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928921212] [2022-07-21 11:45:22,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:45:22,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:45:22,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:45:22,353 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) [2022-07-21 11:45:22,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:45:28,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:45:28,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:45:28,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:45:28,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-07-21 11:45:31,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:45:31,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:45:31,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928921212] [2022-07-21 11:45:31,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928921212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:45:31,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:45:31,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:45:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357584801] [2022-07-21 11:45:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:45:31,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:45:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:45:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:45:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:45:31,674 INFO L87 Difference]: Start difference. First operand 3723 states and 5744 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 11:45:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:45:31,833 INFO L93 Difference]: Finished difference Result 5285 states and 8058 transitions. [2022-07-21 11:45:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:45:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2022-07-21 11:45:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:45:31,869 INFO L225 Difference]: With dead ends: 5285 [2022-07-21 11:45:31,869 INFO L226 Difference]: Without dead ends: 5280 [2022-07-21 11:45:31,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:45:31,877 INFO L413 NwaCegarLoop]: 6516 mSDtfsCounter, 2318 mSDsluCounter, 5623 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 12139 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:45:31,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 12139 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:45:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2022-07-21 11:45:32,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5277. [2022-07-21 11:45:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4004 states have (on average 1.4832667332667333) internal successors, (5939), 4135 states have internal predecessors, (5939), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-21 11:45:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 8050 transitions. [2022-07-21 11:45:32,073 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 8050 transitions. Word has length 207 [2022-07-21 11:45:32,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:32,074 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 8050 transitions. [2022-07-21 11:45:32,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 11:45:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 8050 transitions. [2022-07-21 11:45:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-21 11:45:32,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:32,079 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:45:32,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:45:32,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:45:32,299 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1607065466, now seen corresponding path program 1 times [2022-07-21 11:45:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:45:32,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943979912] [2022-07-21 11:45:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:45:32,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:45:32,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:45:32,307 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) [2022-07-21 11:45:32,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:45:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:39,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:45:39,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-21 11:45:39,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:45:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-21 11:45:41,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:45:41,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943979912] [2022-07-21 11:45:41,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943979912] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:45:41,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:45:41,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-21 11:45:41,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593364661] [2022-07-21 11:45:41,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:45:41,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:45:41,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:45:41,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:45:41,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:45:41,658 INFO L87 Difference]: Start difference. First operand 5277 states and 8050 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:45:46,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:45:46,324 INFO L93 Difference]: Finished difference Result 10560 states and 16163 transitions. [2022-07-21 11:45:46,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 11:45:46,326 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 216 [2022-07-21 11:45:46,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:45:46,359 INFO L225 Difference]: With dead ends: 10560 [2022-07-21 11:45:46,359 INFO L226 Difference]: Without dead ends: 5287 [2022-07-21 11:45:46,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-21 11:45:46,383 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 24 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 39743 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:45:46,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39743 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 11:45:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-07-21 11:45:46,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5279. [2022-07-21 11:45:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 4006 states have (on average 1.4835247129306042) internal successors, (5943), 4137 states have internal predecessors, (5943), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-21 11:45:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8054 transitions. [2022-07-21 11:45:46,634 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8054 transitions. Word has length 216 [2022-07-21 11:45:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:46,634 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8054 transitions. [2022-07-21 11:45:46,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:45:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8054 transitions. [2022-07-21 11:45:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-21 11:45:46,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:46,638 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:45:46,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 11:45:46,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:45:46,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:46,852 INFO L85 PathProgramCache]: Analyzing trace with hash 837176656, now seen corresponding path program 2 times [2022-07-21 11:45:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:45:46,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417024042] [2022-07-21 11:45:46,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:45:46,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:45:46,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:45:46,856 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) [2022-07-21 11:45:46,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:45:52,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:45:52,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:45:52,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:45:52,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-07-21 11:45:55,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:45:55,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:45:55,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417024042] [2022-07-21 11:45:55,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417024042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:45:55,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:45:55,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:45:55,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508412931] [2022-07-21 11:45:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:45:55,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:45:55,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:45:55,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:45:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:45:55,358 INFO L87 Difference]: Start difference. First operand 5279 states and 8054 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:45:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:45:55,479 INFO L93 Difference]: Finished difference Result 10529 states and 16066 transitions. [2022-07-21 11:45:55,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:45:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 223 [2022-07-21 11:45:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:45:55,516 INFO L225 Difference]: With dead ends: 10529 [2022-07-21 11:45:55,517 INFO L226 Difference]: Without dead ends: 5279 [2022-07-21 11:45:55,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:45:55,540 INFO L413 NwaCegarLoop]: 5726 mSDtfsCounter, 5654 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5654 SdHoareTripleChecker+Valid, 5726 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:45:55,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5654 Valid, 5726 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:45:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2022-07-21 11:45:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 5279. [2022-07-21 11:45:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 4006 states have (on average 1.4830254618072891) internal successors, (5941), 4137 states have internal predecessors, (5941), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-21 11:45:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8052 transitions. [2022-07-21 11:45:55,721 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8052 transitions. Word has length 223 [2022-07-21 11:45:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:55,721 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8052 transitions. [2022-07-21 11:45:55,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:45:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8052 transitions. [2022-07-21 11:45:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-21 11:45:55,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:55,726 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:45:55,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:45:55,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:45:55,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -751171246, now seen corresponding path program 1 times [2022-07-21 11:45:55,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:45:55,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007712305] [2022-07-21 11:45:55,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:45:55,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:45:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:45:55,944 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) [2022-07-21 11:45:55,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:46:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:02,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 11:46:02,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:46:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-07-21 11:46:03,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:46:05,683 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-07-21 11:46:05,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:46:05,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007712305] [2022-07-21 11:46:05,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007712305] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:46:05,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:46:05,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-21 11:46:05,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687782839] [2022-07-21 11:46:05,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:46:05,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 11:46:05,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:46:05,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 11:46:05,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:46:05,685 INFO L87 Difference]: Start difference. First operand 5279 states and 8052 transitions. Second operand has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:46:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:13,028 INFO L93 Difference]: Finished difference Result 10568 states and 16176 transitions. [2022-07-21 11:46:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 11:46:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 223 [2022-07-21 11:46:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:13,052 INFO L225 Difference]: With dead ends: 10568 [2022-07-21 11:46:13,052 INFO L226 Difference]: Without dead ends: 5293 [2022-07-21 11:46:13,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:46:13,074 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 21 mSDsluCounter, 56796 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62491 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:13,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62491 Invalid, 854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-21 11:46:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-07-21 11:46:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 5281. [2022-07-21 11:46:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 4008 states have (on average 1.4832834331337326) internal successors, (5945), 4139 states have internal predecessors, (5945), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-21 11:46:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 8056 transitions. [2022-07-21 11:46:13,230 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 8056 transitions. Word has length 223 [2022-07-21 11:46:13,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:13,235 INFO L495 AbstractCegarLoop]: Abstraction has 5281 states and 8056 transitions. [2022-07-21 11:46:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-21 11:46:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 8056 transitions. [2022-07-21 11:46:13,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-21 11:46:13,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:13,239 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:13,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:46:13,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:46:13,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash -655912632, now seen corresponding path program 2 times [2022-07-21 11:46:13,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:46:13,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730394024] [2022-07-21 11:46:13,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:46:13,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:46:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:46:13,460 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) [2022-07-21 11:46:13,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:46:18,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:46:18,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:46:19,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:46:19,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:46:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-07-21 11:46:22,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:46:22,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:46:22,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730394024] [2022-07-21 11:46:22,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730394024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:46:22,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:46:22,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:46:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534474877] [2022-07-21 11:46:22,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:46:22,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:46:22,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:46:22,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:46:22,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:46:22,112 INFO L87 Difference]: Start difference. First operand 5281 states and 8056 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 11:46:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:22,182 INFO L93 Difference]: Finished difference Result 5283 states and 8057 transitions. [2022-07-21 11:46:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:46:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 230 [2022-07-21 11:46:22,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:22,205 INFO L225 Difference]: With dead ends: 5283 [2022-07-21 11:46:22,205 INFO L226 Difference]: Without dead ends: 5237 [2022-07-21 11:46:22,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:46:22,209 INFO L413 NwaCegarLoop]: 5724 mSDtfsCounter, 5638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5638 SdHoareTripleChecker+Valid, 5724 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:22,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5638 Valid, 5724 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:46:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-07-21 11:46:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 5237. [2022-07-21 11:46:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 3977 states have (on average 1.4845360824742269) internal successors, (5904), 4107 states have internal predecessors, (5904), 1043 states have call successors, (1043), 217 states have call predecessors, (1043), 216 states have return successors, (1049), 996 states have call predecessors, (1049), 1040 states have call successors, (1049) [2022-07-21 11:46:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7996 transitions. [2022-07-21 11:46:22,356 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7996 transitions. Word has length 230 [2022-07-21 11:46:22,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:22,356 INFO L495 AbstractCegarLoop]: Abstraction has 5237 states and 7996 transitions. [2022-07-21 11:46:22,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 11:46:22,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7996 transitions. [2022-07-21 11:46:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-21 11:46:22,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:22,361 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:22,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:46:22,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:46:22,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:22,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:22,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1861933267, now seen corresponding path program 1 times [2022-07-21 11:46:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:46:22,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150766496] [2022-07-21 11:46:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:22,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:46:22,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:46:22,581 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) [2022-07-21 11:46:22,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:46:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:29,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 3329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:46:29,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:46:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 198 proven. 10 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-21 11:46:30,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:46:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-07-21 11:46:33,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:46:33,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150766496] [2022-07-21 11:46:33,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150766496] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:46:33,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:46:33,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-21 11:46:33,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682164345] [2022-07-21 11:46:33,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:46:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 11:46:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:46:33,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 11:46:33,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:46:33,204 INFO L87 Difference]: Start difference. First operand 5237 states and 7996 transitions. Second operand has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-21 11:46:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:46:41,465 INFO L93 Difference]: Finished difference Result 10494 states and 16091 transitions. [2022-07-21 11:46:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 11:46:41,466 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 239 [2022-07-21 11:46:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:46:41,490 INFO L225 Difference]: With dead ends: 10494 [2022-07-21 11:46:41,491 INFO L226 Difference]: Without dead ends: 5267 [2022-07-21 11:46:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-21 11:46:41,511 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 40 mSDsluCounter, 51072 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 56767 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:46:41,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 56767 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-07-21 11:46:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2022-07-21 11:46:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5255. [2022-07-21 11:46:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 3993 states have (on average 1.485098923115452) internal successors, (5930), 4123 states have internal predecessors, (5930), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-07-21 11:46:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8029 transitions. [2022-07-21 11:46:41,669 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8029 transitions. Word has length 239 [2022-07-21 11:46:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:46:41,670 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8029 transitions. [2022-07-21 11:46:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-21 11:46:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8029 transitions. [2022-07-21 11:46:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-21 11:46:41,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:46:41,673 INFO L195 NwaCegarLoop]: trace histogram [33, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:46:41,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:46:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:46:41,895 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:46:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:46:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash 966308871, now seen corresponding path program 1 times [2022-07-21 11:46:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:46:41,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605182663] [2022-07-21 11:46:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:46:41,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:46:41,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:46:41,901 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) [2022-07-21 11:46:41,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:46:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:46:48,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:46:48,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:46:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 252 proven. 15 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-07-21 11:46:49,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:46:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-07-21 11:46:53,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:46:53,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605182663] [2022-07-21 11:46:53,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605182663] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:46:53,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:46:53,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-21 11:46:53,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459156578] [2022-07-21 11:46:53,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:46:53,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 11:46:53,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:46:53,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 11:46:53,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:46:53,122 INFO L87 Difference]: Start difference. First operand 5255 states and 8029 transitions. Second operand has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-21 11:47:01,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:01,890 INFO L93 Difference]: Finished difference Result 10518 states and 16099 transitions. [2022-07-21 11:47:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 11:47:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 245 [2022-07-21 11:47:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:01,917 INFO L225 Difference]: With dead ends: 10518 [2022-07-21 11:47:01,918 INFO L226 Difference]: Without dead ends: 5273 [2022-07-21 11:47:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-21 11:47:01,937 INFO L413 NwaCegarLoop]: 5696 mSDtfsCounter, 60 mSDsluCounter, 45457 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 51153 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:01,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 51153 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-07-21 11:47:01,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5273 states. [2022-07-21 11:47:02,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5273 to 5257. [2022-07-21 11:47:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3995 states have (on average 1.4853566958698372) internal successors, (5934), 4125 states have internal predecessors, (5934), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-07-21 11:47:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8033 transitions. [2022-07-21 11:47:02,112 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8033 transitions. Word has length 245 [2022-07-21 11:47:02,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:02,112 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8033 transitions. [2022-07-21 11:47:02,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-21 11:47:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8033 transitions. [2022-07-21 11:47:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-21 11:47:02,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:02,116 INFO L195 NwaCegarLoop]: trace histogram [38, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:47:02,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:47:02,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:47:02,330 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash -443402579, now seen corresponding path program 2 times [2022-07-21 11:47:02,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:47:02,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097181633] [2022-07-21 11:47:02,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:47:02,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:47:02,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:47:02,336 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) [2022-07-21 11:47:02,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:47:08,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:47:08,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:47:08,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:47:08,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:47:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-07-21 11:47:08,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:47:08,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:47:08,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097181633] [2022-07-21 11:47:08,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097181633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:47:08,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:47:08,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:47:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394657827] [2022-07-21 11:47:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:47:08,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:47:08,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:47:08,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:47:08,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:47:08,639 INFO L87 Difference]: Start difference. First operand 5257 states and 8033 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:47:09,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:47:09,321 INFO L93 Difference]: Finished difference Result 12432 states and 18919 transitions. [2022-07-21 11:47:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:47:09,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 250 [2022-07-21 11:47:09,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:47:09,351 INFO L225 Difference]: With dead ends: 12432 [2022-07-21 11:47:09,352 INFO L226 Difference]: Without dead ends: 7200 [2022-07-21 11:47:09,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:47:09,368 INFO L413 NwaCegarLoop]: 5959 mSDtfsCounter, 1485 mSDsluCounter, 5647 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 11606 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:47:09,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 11606 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:47:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-07-21 11:47:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7193. [2022-07-21 11:47:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7193 states, 5501 states have (on average 1.4824577349572805) internal successors, (8155), 5677 states have internal predecessors, (8155), 1366 states have call successors, (1366), 326 states have call predecessors, (1366), 325 states have return successors, (1379), 1307 states have call predecessors, (1379), 1363 states have call successors, (1379) [2022-07-21 11:47:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7193 states to 7193 states and 10900 transitions. [2022-07-21 11:47:09,627 INFO L78 Accepts]: Start accepts. Automaton has 7193 states and 10900 transitions. Word has length 250 [2022-07-21 11:47:09,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:47:09,628 INFO L495 AbstractCegarLoop]: Abstraction has 7193 states and 10900 transitions. [2022-07-21 11:47:09,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:47:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7193 states and 10900 transitions. [2022-07-21 11:47:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-21 11:47:09,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:47:09,633 INFO L195 NwaCegarLoop]: trace histogram [38, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:47:09,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:47:09,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:47:09,855 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:47:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:47:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash -292812326, now seen corresponding path program 1 times [2022-07-21 11:47:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:47:09,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889330791] [2022-07-21 11:47:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:47:09,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:47:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:47:09,860 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) [2022-07-21 11:47:09,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:47:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:47:17,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 11:47:17,359 INFO L286 TraceCheckSpWp]: Computing forward predicates...