./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:36:45,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:36:45,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:36:45,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:36:45,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:36:45,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:36:45,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:36:45,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:36:45,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:36:45,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:36:45,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:36:45,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:36:45,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:36:45,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:36:45,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:36:45,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:36:45,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:36:45,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:36:45,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:36:45,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:36:45,359 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:36:45,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:36:45,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:36:45,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:36:45,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:36:45,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:36:45,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:36:45,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:36:45,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:36:45,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:36:45,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:36:45,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:36:45,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:36:45,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:36:45,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:36:45,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:36:45,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:36:45,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:36:45,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:36:45,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:36:45,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:36:45,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:36:45,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:36:45,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:36:45,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:36:45,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:36:45,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:36:45,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:36:45,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:36:45,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:36:45,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:36:45,419 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:36:45,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:36:45,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:36:45,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:36:45,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:36:45,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:36:45,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:36:45,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:36:45,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:36:45,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:36:45,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:36:45,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-21 11:36:45,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:36:45,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:36:45,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:36:45,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:36:45,729 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:36:45,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-21 11:36:45,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a773bec/332b69570b3145149150a20e93502770/FLAG5db2cf7ea [2022-07-21 11:36:46,515 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:36:46,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-21 11:36:46,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a773bec/332b69570b3145149150a20e93502770/FLAG5db2cf7ea [2022-07-21 11:36:47,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a773bec/332b69570b3145149150a20e93502770 [2022-07-21 11:36:47,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:36:47,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:36:47,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:36:47,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:36:47,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:36:47,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:36:47" (1/1) ... [2022-07-21 11:36:47,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4eb3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:47, skipping insertion in model container [2022-07-21 11:36:47,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:36:47" (1/1) ... [2022-07-21 11:36:47,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:36:47,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:36:47,857 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-21 11:36:50,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:36:50,183 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:36:50,256 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-21 11:36:50,489 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 11:36:50,496 INFO L158 Benchmark]: Toolchain (without parser) took 3416.51ms. Allocated memory was 52.4MB in the beginning and 155.2MB in the end (delta: 102.8MB). Free memory was 23.7MB in the beginning and 66.4MB in the end (delta: -42.6MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-07-21 11:36:50,497 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:36:50,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3414.96ms. Allocated memory was 52.4MB in the beginning and 155.2MB in the end (delta: 102.8MB). Free memory was 23.6MB in the beginning and 66.4MB in the end (delta: -42.8MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-07-21 11:36:50,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3414.96ms. Allocated memory was 52.4MB in the beginning and 155.2MB in the end (delta: 102.8MB). Free memory was 23.6MB in the beginning and 66.4MB in the end (delta: -42.8MB). Peak memory consumption was 70.9MB. 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:36:52,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:36:52,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:36:52,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:36:52,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:36:52,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:36:52,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:36:52,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:36:52,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:36:52,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:36:52,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:36:52,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:36:52,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:36:52,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:36:52,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:36:52,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:36:52,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:36:52,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:36:52,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:36:52,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:36:52,268 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:36:52,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:36:52,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:36:52,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:36:52,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:36:52,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:36:52,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:36:52,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:36:52,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:36:52,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:36:52,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:36:52,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:36:52,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:36:52,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:36:52,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:36:52,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:36:52,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:36:52,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:36:52,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:36:52,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:36:52,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:36:52,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:36:52,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:36:52,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:36:52,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:36:52,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:36:52,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:36:52,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:36:52,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:36:52,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:36:52,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:36:52,335 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:36:52,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:36:52,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:36:52,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:36:52,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:36:52,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:36:52,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:36:52,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:36:52,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:36:52,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:36:52,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:36:52,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:36:52,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:36:52,339 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:36:52,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:36:52,339 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:36:52,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:36:52,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:36:52,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:36:52,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-21 11:36:52,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:36:52,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:36:52,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:36:52,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:36:52,659 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:36:52,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-21 11:36:52,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab99e214c/5d908b3b5c9a4fb6b7ce03423f31fe39/FLAG240706ddf [2022-07-21 11:36:53,433 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:36:53,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-21 11:36:53,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab99e214c/5d908b3b5c9a4fb6b7ce03423f31fe39/FLAG240706ddf [2022-07-21 11:36:53,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab99e214c/5d908b3b5c9a4fb6b7ce03423f31fe39 [2022-07-21 11:36:53,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:36:53,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:36:53,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:36:53,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:36:53,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:36:53,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:36:53" (1/1) ... [2022-07-21 11:36:53,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325aab0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:53, skipping insertion in model container [2022-07-21 11:36:53,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:36:53" (1/1) ... [2022-07-21 11:36:53,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:36:53,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:36:54,333 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-21 11:36:56,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:36:56,560 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:36:56,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:36:56,679 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-21 11:36:56,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:36:57,038 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:36:57,108 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-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-21 11:36:57,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:36:57,518 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:36:57,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57 WrapperNode [2022-07-21 11:36:57,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:36:57,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:36:57,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:36:57,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:36:57,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:57,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:57,856 INFO L137 Inliner]: procedures = 434, calls = 5126, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9807 [2022-07-21 11:36:57,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:36:57,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:36:57,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:36:57,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:36:57,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:57,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:57,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:57,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:58,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:58,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:58,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:58,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:36:58,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:36:58,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:36:58,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:36:58,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (1/1) ... [2022-07-21 11:36:58,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:36:58,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:36:58,277 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 11:36:58,294 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 11:36:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-21 11:36:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-21 11:36:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-21 11:36:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-21 11:36:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 11:36:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 11:36:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:36:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:36:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-21 11:36:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-21 11:36:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-21 11:36:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-21 11:36:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-21 11:36:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-21 11:36:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-21 11:36:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-21 11:36:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-21 11:36:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-21 11:36:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-21 11:36:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:36:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:36:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-21 11:36:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-21 11:36:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-21 11:36:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-21 11:36:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:36:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:36:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-21 11:36:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-21 11:36:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:36:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 11:36:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:36:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-21 11:36:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-21 11:36:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:36:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-21 11:36:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-21 11:36:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-21 11:36:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-21 11:36:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-21 11:36:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-21 11:36:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-21 11:36:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-21 11:36:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-21 11:36:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-21 11:36:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:36:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:36:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-21 11:36:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-21 11:36:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 11:36:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 11:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-21 11:36:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-21 11:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-21 11:36:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-21 11:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-21 11:36:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-21 11:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-21 11:36:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-21 11:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-21 11:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-21 11:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-21 11:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-21 11:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-21 11:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-21 11:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-21 11:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-21 11:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-21 11:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-21 11:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-21 11:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-21 11:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-21 11:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-21 11:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-21 11:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 11:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 11:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 11:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 11:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-21 11:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-21 11:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-21 11:36:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-21 11:36:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-21 11:36:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-21 11:36:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-21 11:36:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-21 11:36:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-21 11:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-21 11:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-21 11:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-21 11:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-21 11:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-21 11:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-21 11:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-21 11:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-21 11:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-21 11:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-21 11:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-21 11:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-21 11:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-21 11:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-21 11:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-21 11:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-21 11:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-21 11:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-21 11:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-21 11:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-21 11:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-21 11:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-21 11:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-21 11:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-21 11:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 11:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-21 11:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-21 11:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-21 11:36:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:36:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:36:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 11:36:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-21 11:36:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-21 11:36:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-21 11:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-21 11:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-21 11:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-21 11:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-21 11:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-21 11:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-21 11:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-21 11:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-21 11:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 11:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 11:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 11:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 11:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-21 11:36:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-21 11:36:58,326 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 11:36:58,326 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 11:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-21 11:36:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-21 11:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-21 11:36:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-21 11:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-21 11:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-21 11:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 11:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 11:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-21 11:36:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-21 11:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-21 11:36:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-21 11:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-21 11:36:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-21 11:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:36:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-21 11:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-21 11:36:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-21 11:36:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-21 11:36:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-21 11:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-21 11:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-21 11:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-21 11:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-21 11:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 11:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 11:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-21 11:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-21 11:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-21 11:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-21 11:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-21 11:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-21 11:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-21 11:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-21 11:36:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-21 11:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-21 11:36:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-21 11:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-21 11:36:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-21 11:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-21 11:36:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-21 11:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-21 11:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-21 11:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-21 11:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:36:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:36:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-21 11:36:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-21 11:36:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-21 11:36:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-21 11:36:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-21 11:36:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-21 11:36:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-21 11:36:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-21 11:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-21 11:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-21 11:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 11:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 11:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-21 11:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-21 11:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-21 11:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-21 11:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 11:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 11:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 11:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 11:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-21 11:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-21 11:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-21 11:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-21 11:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-21 11:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-21 11:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-21 11:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-21 11:36:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-21 11:36:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-21 11:36:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:36:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:36:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 11:36:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 11:36:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-21 11:36:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-21 11:36:59,180 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:36:59,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:37:00,105 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:37:00,351 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-07-21 11:37:00,351 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-07-21 11:37:00,351 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845: SUMMARY for call #t~ret118 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-21 11:37:00,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835: SUMMARY for call #t~ret117 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: SUMMARY for call #t~ret116 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-07-21 11:37:00,353 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-07-21 11:38:23,880 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 4bv32 == __copy_from_user_~size#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 8bv32 == __copy_from_user_~size#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 10bv32 == __copy_from_user_~size#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 16bv32 == __copy_from_user_~size#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret111#1;havoc __copy_from_user_#t~ret111#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763: SUMMARY for call __copy_from_user_#t~ret111#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-07-21 11:38:23,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776: SUMMARY for call __copy_from_user_#t~ret112#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776-1: __copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret112#1;havoc __copy_from_user_#t~ret112#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume 0bv64 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume !(0bv64 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786: SUMMARY for call __copy_from_user_#t~ret113#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 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786-1: __copy_from_user_~tmp___2~1#1 := __copy_from_user_#t~ret113#1;havoc __copy_from_user_#t~ret113#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~1#1[32:0]; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 2bv32 == __copy_from_user_~size#1; [2022-07-21 11:38:23,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-21 11:38:24,150 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:38:24,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:38:24,186 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:38:24,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:38:24 BoogieIcfgContainer [2022-07-21 11:38:24,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:38:24,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:38:24,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:38:24,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:38:24,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:36:53" (1/3) ... [2022-07-21 11:38:24,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21517949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:38:24, skipping insertion in model container [2022-07-21 11:38:24,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:36:57" (2/3) ... [2022-07-21 11:38:24,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21517949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:38:24, skipping insertion in model container [2022-07-21 11:38:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:38:24" (3/3) ... [2022-07-21 11:38:24,201 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-21 11:38:24,214 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:38:24,214 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:38:24,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:38:24,329 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@37e83768, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ed585cd [2022-07-21 11:38:24,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:38:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 3678 states, 2818 states have (on average 1.5049680624556423) internal successors, (4241), 2908 states have internal predecessors, (4241), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) [2022-07-21 11:38:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-21 11:38:24,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:38:24,361 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:38:24,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:38:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:38:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 862318060, now seen corresponding path program 1 times [2022-07-21 11:38:24,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:38:24,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324224179] [2022-07-21 11:38:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:38:24,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:38:24,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:38:24,410 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 11:38:24,429 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 11:38:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:38:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:38:30,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:38:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-21 11:38:30,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:38:30,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:38:30,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324224179] [2022-07-21 11:38:30,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324224179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:38:30,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:38:30,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:38:30,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706105460] [2022-07-21 11:38:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:38:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:38:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:38:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:38:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:38:30,276 INFO L87 Difference]: Start difference. First operand has 3678 states, 2818 states have (on average 1.5049680624556423) internal successors, (4241), 2908 states have internal predecessors, (4241), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:38:31,008 INFO L93 Difference]: Finished difference Result 8294 states and 12825 transitions. [2022-07-21 11:38:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:38:31,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2022-07-21 11:38:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:38:31,052 INFO L225 Difference]: With dead ends: 8294 [2022-07-21 11:38:31,052 INFO L226 Difference]: Without dead ends: 4594 [2022-07-21 11:38:31,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:38:31,082 INFO L413 NwaCegarLoop]: 5840 mSDtfsCounter, 1423 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 11460 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 11:38:31,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 11460 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:38:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2022-07-21 11:38:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4586. [2022-07-21 11:38:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4586 states, 3540 states have (on average 1.501129943502825) internal successors, (5314), 3643 states have internal predecessors, (5314), 863 states have call successors, (863), 183 states have call predecessors, (863), 182 states have return successors, (859), 835 states have call predecessors, (859), 859 states have call successors, (859) [2022-07-21 11:38:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 7036 transitions. [2022-07-21 11:38:31,304 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 7036 transitions. Word has length 55 [2022-07-21 11:38:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:38:31,306 INFO L495 AbstractCegarLoop]: Abstraction has 4586 states and 7036 transitions. [2022-07-21 11:38:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 7036 transitions. [2022-07-21 11:38:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 11:38:31,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:38:31,314 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:38:31,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:38:31,527 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 11:38:31,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:38:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:38:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2041421241, now seen corresponding path program 1 times [2022-07-21 11:38:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:38:31,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644883167] [2022-07-21 11:38:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:38:31,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:38:31,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:38:31,532 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 11:38:31,534 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 11:38:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:38:37,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:38:37,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:38:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-21 11:38:37,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:38:37,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:38:37,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644883167] [2022-07-21 11:38:37,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644883167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:38:37,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:38:37,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:38:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876060069] [2022-07-21 11:38:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:38:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:38:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:38:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:38:37,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:38:37,943 INFO L87 Difference]: Start difference. First operand 4586 states and 7036 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:38:38,847 INFO L93 Difference]: Finished difference Result 4599 states and 7048 transitions. [2022-07-21 11:38:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:38:38,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-07-21 11:38:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:38:38,870 INFO L225 Difference]: With dead ends: 4599 [2022-07-21 11:38:38,870 INFO L226 Difference]: Without dead ends: 4596 [2022-07-21 11:38:38,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 11:38:38,874 INFO L413 NwaCegarLoop]: 5664 mSDtfsCounter, 5610 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:38:38,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 5693 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:38:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-07-21 11:38:38,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-07-21 11:38:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 3548 states have (on average 1.5) internal successors, (5322), 3650 states have internal predecessors, (5322), 863 states have call successors, (863), 185 states have call predecessors, (863), 184 states have return successors, (860), 836 states have call predecessors, (860), 860 states have call successors, (860) [2022-07-21 11:38:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7045 transitions. [2022-07-21 11:38:39,011 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7045 transitions. Word has length 65 [2022-07-21 11:38:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:38:39,012 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 7045 transitions. [2022-07-21 11:38:39,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7045 transitions. [2022-07-21 11:38:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 11:38:39,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:38:39,014 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:38:39,117 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 11:38:39,231 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 11:38:39,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:38:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:38:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1141615170, now seen corresponding path program 1 times [2022-07-21 11:38:39,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:38:39,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720535736] [2022-07-21 11:38:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:38:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:38:39,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:38:39,251 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 11:38:39,270 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 11:38:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:38:45,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:38:45,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:38:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-21 11:38:45,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:38:45,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:38:45,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720535736] [2022-07-21 11:38:45,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720535736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:38:45,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:38:45,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:38:45,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173237213] [2022-07-21 11:38:45,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:38:45,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:38:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:38:45,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:38:45,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:38:45,579 INFO L87 Difference]: Start difference. First operand 4596 states and 7045 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:38:46,427 INFO L93 Difference]: Finished difference Result 7023 states and 10662 transitions. [2022-07-21 11:38:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:38:46,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-07-21 11:38:46,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:38:46,465 INFO L225 Difference]: With dead ends: 7023 [2022-07-21 11:38:46,466 INFO L226 Difference]: Without dead ends: 6935 [2022-07-21 11:38:46,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 11:38:46,477 INFO L413 NwaCegarLoop]: 6389 mSDtfsCounter, 2264 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 11977 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:38:46,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 11977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:38:46,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-07-21 11:38:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-07-21 11:38:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5345 states have (on average 1.4942937324602432) internal successors, (7987), 5519 states have internal predecessors, (7987), 1279 states have call successors, (1279), 313 states have call predecessors, (1279), 310 states have return successors, (1278), 1220 states have call predecessors, (1278), 1276 states have call successors, (1278) [2022-07-21 11:38:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10544 transitions. [2022-07-21 11:38:46,675 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10544 transitions. Word has length 66 [2022-07-21 11:38:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:38:46,676 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10544 transitions. [2022-07-21 11:38:46,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:38:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10544 transitions. [2022-07-21 11:38:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-21 11:38:46,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:38:46,683 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:38:46,773 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 11:38:46,903 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 11:38:46,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:38:46,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:38:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash 383961807, now seen corresponding path program 1 times [2022-07-21 11:38:46,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:38:46,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032291848] [2022-07-21 11:38:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:38:46,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:38:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:38:46,919 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 11:38:46,921 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 11:38:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:38:53,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:38:53,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:38:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-21 11:38:53,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:38:53,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:38:53,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032291848] [2022-07-21 11:38:53,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032291848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:38:53,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:38:53,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:38:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120272872] [2022-07-21 11:38:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:38:53,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:38:53,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:38:53,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:38:53,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:38:53,257 INFO L87 Difference]: Start difference. First operand 6935 states and 10544 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 11:38:54,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:38:54,600 INFO L93 Difference]: Finished difference Result 13866 states and 21083 transitions. [2022-07-21 11:38:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:38:54,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-07-21 11:38:54,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:38:54,634 INFO L225 Difference]: With dead ends: 13866 [2022-07-21 11:38:54,635 INFO L226 Difference]: Without dead ends: 6939 [2022-07-21 11:38:54,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:38:54,661 INFO L413 NwaCegarLoop]: 5651 mSDtfsCounter, 23 mSDsluCounter, 22598 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28249 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:38:54,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 11:38:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-07-21 11:38:54,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6928. [2022-07-21 11:38:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 5342 states have (on average 1.4938225383751405) internal successors, (7980), 5514 states have internal predecessors, (7980), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-21 11:38:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10533 transitions. [2022-07-21 11:38:54,848 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10533 transitions. Word has length 110 [2022-07-21 11:38:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:38:54,850 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10533 transitions. [2022-07-21 11:38:54,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 11:38:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10533 transitions. [2022-07-21 11:38:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 11:38:54,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:38:54,859 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:38:54,948 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 11:38:55,083 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 11:38:55,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:38:55,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:38:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1223170593, now seen corresponding path program 1 times [2022-07-21 11:38:55,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:38:55,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521775220] [2022-07-21 11:38:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:38:55,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:38:55,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:38:55,088 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 11:38:55,090 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 11:39:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:01,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:39:01,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 11:39:01,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:01,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:01,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521775220] [2022-07-21 11:39:01,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521775220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:01,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:01,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:39:01,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443546411] [2022-07-21 11:39:01,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:01,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:39:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:39:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:39:01,273 INFO L87 Difference]: Start difference. First operand 6928 states and 10533 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:02,409 INFO L93 Difference]: Finished difference Result 14008 states and 21320 transitions. [2022-07-21 11:39:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:39:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-21 11:39:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:02,455 INFO L225 Difference]: With dead ends: 14008 [2022-07-21 11:39:02,455 INFO L226 Difference]: Without dead ends: 7106 [2022-07-21 11:39:02,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:39:02,480 INFO L413 NwaCegarLoop]: 5938 mSDtfsCounter, 3442 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:02,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 13810 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 11:39:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2022-07-21 11:39:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 6928. [2022-07-21 11:39:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 5342 states have (on average 1.4930737551478848) internal successors, (7976), 5514 states have internal predecessors, (7976), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-21 11:39:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10529 transitions. [2022-07-21 11:39:02,696 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10529 transitions. Word has length 115 [2022-07-21 11:39:02,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:02,696 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10529 transitions. [2022-07-21 11:39:02,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10529 transitions. [2022-07-21 11:39:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 11:39:02,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:02,701 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:02,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:39:02,927 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 11:39:02,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1157822766, now seen corresponding path program 1 times [2022-07-21 11:39:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:02,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895109089] [2022-07-21 11:39:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:02,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:02,932 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 11:39:02,933 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 11:39:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:08,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:39:08,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 11:39:08,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:08,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:08,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895109089] [2022-07-21 11:39:08,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895109089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:08,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:08,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:39:08,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416804820] [2022-07-21 11:39:08,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:08,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:39:08,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:08,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:39:08,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:39:08,873 INFO L87 Difference]: Start difference. First operand 6928 states and 10529 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:09,070 INFO L93 Difference]: Finished difference Result 13858 states and 21066 transitions. [2022-07-21 11:39:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:39:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2022-07-21 11:39:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:09,097 INFO L225 Difference]: With dead ends: 13858 [2022-07-21 11:39:09,097 INFO L226 Difference]: Without dead ends: 6956 [2022-07-21 11:39:09,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 11:39:09,121 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 8 mSDsluCounter, 5647 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:09,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:39:09,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-07-21 11:39:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6932. [2022-07-21 11:39:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6932 states, 5346 states have (on average 1.4927048260381595) internal successors, (7980), 5518 states have internal predecessors, (7980), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-21 11:39:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 10533 transitions. [2022-07-21 11:39:09,314 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 10533 transitions. Word has length 119 [2022-07-21 11:39:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:09,315 INFO L495 AbstractCegarLoop]: Abstraction has 6932 states and 10533 transitions. [2022-07-21 11:39:09,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 10533 transitions. [2022-07-21 11:39:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 11:39:09,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:09,320 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:09,409 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 11:39:09,547 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 11:39:09,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash 623672786, now seen corresponding path program 1 times [2022-07-21 11:39:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:09,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918531199] [2022-07-21 11:39:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:09,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:09,553 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 11:39:09,554 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 11:39:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:15,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:39:15,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:15,763 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 11:39:15,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:39:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-21 11:39:15,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:15,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918531199] [2022-07-21 11:39:15,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918531199] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:39:15,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:39:15,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 11:39:15,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023046602] [2022-07-21 11:39:15,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:39:15,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:39:15,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:15,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:39:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:39:15,974 INFO L87 Difference]: Start difference. First operand 6932 states and 10533 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:39:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:16,401 INFO L93 Difference]: Finished difference Result 13890 states and 21106 transitions. [2022-07-21 11:39:16,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:39:16,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2022-07-21 11:39:16,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:16,425 INFO L225 Difference]: With dead ends: 13890 [2022-07-21 11:39:16,426 INFO L226 Difference]: Without dead ends: 6984 [2022-07-21 11:39:16,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:39:16,442 INFO L413 NwaCegarLoop]: 5655 mSDtfsCounter, 28 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 22591 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:16,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 22591 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:39:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-07-21 11:39:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6960. [2022-07-21 11:39:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 5374 states have (on average 1.4916263490882025) internal successors, (8016), 5546 states have internal predecessors, (8016), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-21 11:39:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10569 transitions. [2022-07-21 11:39:16,606 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10569 transitions. Word has length 122 [2022-07-21 11:39:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:16,606 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10569 transitions. [2022-07-21 11:39:16,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:39:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10569 transitions. [2022-07-21 11:39:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-21 11:39:16,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:16,611 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:16,696 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 11:39:16,839 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 11:39:16,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1349838916, now seen corresponding path program 1 times [2022-07-21 11:39:16,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:16,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384889546] [2022-07-21 11:39:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:16,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:16,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:16,843 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 11:39:16,844 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 11:39:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:23,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:39:23,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-21 11:39:23,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:23,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:23,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384889546] [2022-07-21 11:39:23,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384889546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:23,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:23,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:39:23,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238204398] [2022-07-21 11:39:23,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:23,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:39:23,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:39:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:39:23,991 INFO L87 Difference]: Start difference. First operand 6960 states and 10569 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:24,201 INFO L93 Difference]: Finished difference Result 13894 states and 21106 transitions. [2022-07-21 11:39:24,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:39:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-07-21 11:39:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:24,228 INFO L225 Difference]: With dead ends: 13894 [2022-07-21 11:39:24,229 INFO L226 Difference]: Without dead ends: 6960 [2022-07-21 11:39:24,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 11:39:24,245 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 5601 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5601 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:24,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5601 Valid, 5650 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:39:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-07-21 11:39:24,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6960. [2022-07-21 11:39:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 5374 states have (on average 1.4908820245627092) internal successors, (8012), 5546 states have internal predecessors, (8012), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-21 11:39:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10565 transitions. [2022-07-21 11:39:24,500 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10565 transitions. Word has length 127 [2022-07-21 11:39:24,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:24,500 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10565 transitions. [2022-07-21 11:39:24,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10565 transitions. [2022-07-21 11:39:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-21 11:39:24,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:24,507 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:24,616 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 11:39:24,733 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 11:39:24,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:24,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:24,733 INFO L85 PathProgramCache]: Analyzing trace with hash -355339667, now seen corresponding path program 1 times [2022-07-21 11:39:24,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:24,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989491157] [2022-07-21 11:39:24,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:24,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:24,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:24,741 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 11:39:24,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:39:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:31,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:39:31,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-21 11:39:31,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:31,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:31,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989491157] [2022-07-21 11:39:31,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989491157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:31,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:31,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:39:31,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259668076] [2022-07-21 11:39:31,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:31,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:39:31,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:31,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:39:31,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:39:31,280 INFO L87 Difference]: Start difference. First operand 6960 states and 10565 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:32,202 INFO L93 Difference]: Finished difference Result 13893 states and 21097 transitions. [2022-07-21 11:39:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:39:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-07-21 11:39:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:32,224 INFO L225 Difference]: With dead ends: 13893 [2022-07-21 11:39:32,225 INFO L226 Difference]: Without dead ends: 6959 [2022-07-21 11:39:32,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 11:39:32,239 INFO L413 NwaCegarLoop]: 7393 mSDtfsCounter, 5554 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 9628 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:32,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5554 Valid, 9628 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:39:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2022-07-21 11:39:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2022-07-21 11:39:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 5374 states have (on average 1.4905098622999629) internal successors, (8010), 5545 states have internal predecessors, (8010), 1276 states have call successors, (1276), 311 states have call predecessors, (1276), 308 states have return successors, (1266), 1217 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-07-21 11:39:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10552 transitions. [2022-07-21 11:39:32,396 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10552 transitions. Word has length 126 [2022-07-21 11:39:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:32,397 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10552 transitions. [2022-07-21 11:39:32,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 11:39:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10552 transitions. [2022-07-21 11:39:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-21 11:39:32,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:32,409 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:32,518 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 11:39:32,631 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 11:39:32,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:32,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:32,632 INFO L85 PathProgramCache]: Analyzing trace with hash 173054243, now seen corresponding path program 1 times [2022-07-21 11:39:32,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:32,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172582160] [2022-07-21 11:39:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:32,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:32,640 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 11:39:32,679 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 11:39:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:38,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:39:38,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-21 11:39:39,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:39,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172582160] [2022-07-21 11:39:39,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172582160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:39,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:39,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:39:39,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956252854] [2022-07-21 11:39:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:39,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:39:39,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:39:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:39:39,131 INFO L87 Difference]: Start difference. First operand 6959 states and 10552 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 11:39:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:40,448 INFO L93 Difference]: Finished difference Result 17231 states and 26013 transitions. [2022-07-21 11:39:40,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:39:40,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2022-07-21 11:39:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:40,485 INFO L225 Difference]: With dead ends: 17231 [2022-07-21 11:39:40,486 INFO L226 Difference]: Without dead ends: 10298 [2022-07-21 11:39:40,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 11:39:40,557 INFO L413 NwaCegarLoop]: 7107 mSDtfsCounter, 3619 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 11929 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:40,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 11929 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 11:39:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-07-21 11:39:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10280. [2022-07-21 11:39:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10280 states, 7871 states have (on average 1.476432473637403) internal successors, (11621), 8139 states have internal predecessors, (11621), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-21 11:39:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10280 states to 10280 states and 15453 transitions. [2022-07-21 11:39:40,806 INFO L78 Accepts]: Start accepts. Automaton has 10280 states and 15453 transitions. Word has length 151 [2022-07-21 11:39:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:40,806 INFO L495 AbstractCegarLoop]: Abstraction has 10280 states and 15453 transitions. [2022-07-21 11:39:40,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 11:39:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 10280 states and 15453 transitions. [2022-07-21 11:39:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 11:39:40,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:40,826 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:40,924 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 11:39:41,039 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 11:39:41,039 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:41,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:41,040 INFO L85 PathProgramCache]: Analyzing trace with hash 5358041, now seen corresponding path program 1 times [2022-07-21 11:39:41,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:41,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515220056] [2022-07-21 11:39:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:41,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:41,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:41,044 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 11:39:41,045 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 11:39:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:47,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:39:47,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-21 11:39:47,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:47,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:47,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515220056] [2022-07-21 11:39:47,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515220056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:47,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:47,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:39:47,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322100353] [2022-07-21 11:39:47,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:47,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:39:47,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:47,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:39:47,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:39:47,596 INFO L87 Difference]: Start difference. First operand 10280 states and 15453 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 11:39:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:49,219 INFO L93 Difference]: Finished difference Result 24384 states and 36610 transitions. [2022-07-21 11:39:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:39:49,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 167 [2022-07-21 11:39:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:49,263 INFO L225 Difference]: With dead ends: 24384 [2022-07-21 11:39:49,263 INFO L226 Difference]: Without dead ends: 14130 [2022-07-21 11:39:49,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:39:49,287 INFO L413 NwaCegarLoop]: 8360 mSDtfsCounter, 3882 mSDsluCounter, 13708 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 22068 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:49,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3882 Valid, 22068 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 11:39:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14130 states. [2022-07-21 11:39:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14130 to 10282. [2022-07-21 11:39:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10282 states, 7873 states have (on average 1.476184427791185) internal successors, (11622), 8141 states have internal predecessors, (11622), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-21 11:39:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10282 states to 10282 states and 15454 transitions. [2022-07-21 11:39:49,599 INFO L78 Accepts]: Start accepts. Automaton has 10282 states and 15454 transitions. Word has length 167 [2022-07-21 11:39:49,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:49,599 INFO L495 AbstractCegarLoop]: Abstraction has 10282 states and 15454 transitions. [2022-07-21 11:39:49,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 11:39:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10282 states and 15454 transitions. [2022-07-21 11:39:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-21 11:39:49,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:49,617 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:49,713 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 11:39:49,843 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 11:39:49,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:49,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:49,844 INFO L85 PathProgramCache]: Analyzing trace with hash -900271211, now seen corresponding path program 1 times [2022-07-21 11:39:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:49,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099432224] [2022-07-21 11:39:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:49,849 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 11:39:49,849 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 11:39:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:39:56,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:39:56,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:39:56,822 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-21 11:39:56,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:39:56,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:39:56,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099432224] [2022-07-21 11:39:56,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099432224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:39:56,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:39:56,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:39:56,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280189819] [2022-07-21 11:39:56,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:39:56,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:39:56,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:39:56,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:39:56,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:39:56,823 INFO L87 Difference]: Start difference. First operand 10282 states and 15454 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:39:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:39:57,201 INFO L93 Difference]: Finished difference Result 20539 states and 30878 transitions. [2022-07-21 11:39:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:39:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 196 [2022-07-21 11:39:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:39:57,233 INFO L225 Difference]: With dead ends: 20539 [2022-07-21 11:39:57,234 INFO L226 Difference]: Without dead ends: 10283 [2022-07-21 11:39:57,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 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 11:39:57,255 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 0 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:39:57,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:39:57,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-21 11:39:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10283. [2022-07-21 11:39:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10283 states, 7874 states have (on average 1.4761239522479046) internal successors, (11623), 8142 states have internal predecessors, (11623), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-21 11:39:57,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15455 transitions. [2022-07-21 11:39:57,563 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15455 transitions. Word has length 196 [2022-07-21 11:39:57,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:39:57,564 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15455 transitions. [2022-07-21 11:39:57,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:39:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15455 transitions. [2022-07-21 11:39:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-21 11:39:57,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:57,582 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:39:57,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 11:39:57,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:39:57,796 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -752536678, now seen corresponding path program 1 times [2022-07-21 11:39:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:57,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767338719] [2022-07-21 11:39:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:57,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:57,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:57,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:39:57,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:40:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:04,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:40:04,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-21 11:40:04,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:04,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:04,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767338719] [2022-07-21 11:40:04,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767338719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:04,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:04,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892938440] [2022-07-21 11:40:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:04,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:04,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:04,320 INFO L87 Difference]: Start difference. First operand 10283 states and 15455 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:40:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:04,811 INFO L93 Difference]: Finished difference Result 22581 states and 34122 transitions. [2022-07-21 11:40:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 198 [2022-07-21 11:40:04,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:04,856 INFO L225 Difference]: With dead ends: 22581 [2022-07-21 11:40:04,857 INFO L226 Difference]: Without dead ends: 12324 [2022-07-21 11:40:04,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 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 11:40:04,880 INFO L413 NwaCegarLoop]: 6984 mSDtfsCounter, 1666 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 12057 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:04,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 12057 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:40:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-07-21 11:40:05,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10289. [2022-07-21 11:40:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10289 states, 7880 states have (on average 1.475761421319797) internal successors, (11629), 8148 states have internal predecessors, (11629), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-21 11:40:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 15461 transitions. [2022-07-21 11:40:05,198 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 15461 transitions. Word has length 198 [2022-07-21 11:40:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:05,199 INFO L495 AbstractCegarLoop]: Abstraction has 10289 states and 15461 transitions. [2022-07-21 11:40:05,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:40:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 15461 transitions. [2022-07-21 11:40:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-21 11:40:05,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:05,219 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:40:05,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:05,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:05,432 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1262009768, now seen corresponding path program 1 times [2022-07-21 11:40:05,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:05,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502505902] [2022-07-21 11:40:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:05,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:05,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:05,448 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:05,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 11:40:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:28,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-21 11:40:28,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:28,665 INFO L244 Elim1Store]: Index analysis took 322 ms [2022-07-21 11:40:29,904 INFO L356 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-07-21 11:40:29,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 597 treesize of output 646 [2022-07-21 11:40:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 11:40:30,315 INFO L244 Elim1Store]: Index analysis took 283 ms [2022-07-21 11:40:31,351 INFO L356 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-07-21 11:40:31,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 88 [2022-07-21 11:40:36,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 11:40:36,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-07-21 11:40:36,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 11:40:36,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-07-21 11:40:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-21 11:40:36,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:36,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:36,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502505902] [2022-07-21 11:40:36,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502505902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:36,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:36,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:40:36,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543147597] [2022-07-21 11:40:36,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:36,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:40:36,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:36,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:40:36,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:40:36,958 INFO L87 Difference]: Start difference. First operand 10289 states and 15461 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:40:49,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:40:54,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:41:00,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:41:02,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:41:05,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []