./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:12:59,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:12:59,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:12:59,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:12:59,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:12:59,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:12:59,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:12:59,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:12:59,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:12:59,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:12:59,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:12:59,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:12:59,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:12:59,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:12:59,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:12:59,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:12:59,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:12:59,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:12:59,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:12:59,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:12:59,522 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:12:59,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:12:59,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:12:59,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:12:59,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:12:59,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:12:59,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:12:59,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:12:59,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:12:59,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:12:59,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:12:59,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:12:59,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:12:59,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:12:59,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:12:59,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:12:59,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:12:59,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:12:59,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:12:59,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:12:59,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:12:59,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:12:59,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:12:59,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:12:59,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:12:59,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:12:59,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:12:59,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:12:59,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:12:59,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:12:59,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:12:59,572 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:12:59,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:12:59,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:12:59,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:12:59,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:12:59,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:12:59,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:12:59,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:12:59,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:12:59,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:12:59,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-21 11:12:59,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:12:59,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:12:59,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:12:59,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:12:59,852 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:12:59,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 11:12:59,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da8f4c98/d929eccbc5cc447fabf7e36feb088313/FLAG1fd93af68 [2022-07-21 11:13:00,621 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:13:00,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 11:13:00,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da8f4c98/d929eccbc5cc447fabf7e36feb088313/FLAG1fd93af68 [2022-07-21 11:13:00,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da8f4c98/d929eccbc5cc447fabf7e36feb088313 [2022-07-21 11:13:00,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:13:00,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:13:00,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:13:00,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:13:00,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:13:00,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:13:00" (1/1) ... [2022-07-21 11:13:00,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b0d8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:00, skipping insertion in model container [2022-07-21 11:13:00,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:13:00" (1/1) ... [2022-07-21 11:13:00,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:13:01,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:13:01,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-21 11:13:03,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:13:03,750 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:13:03,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-21 11:13:03,870 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 11:13:03,874 INFO L158 Benchmark]: Toolchain (without parser) took 2941.14ms. Allocated memory was 71.3MB in the beginning and 161.5MB in the end (delta: 90.2MB). Free memory was 35.7MB in the beginning and 78.3MB in the end (delta: -42.6MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2022-07-21 11:13:03,874 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:13:03,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2938.74ms. Allocated memory was 71.3MB in the beginning and 161.5MB in the end (delta: 90.2MB). Free memory was 35.5MB in the beginning and 78.3MB in the end (delta: -42.8MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2022-07-21 11:13:03,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2938.74ms. Allocated memory was 71.3MB in the beginning and 161.5MB in the end (delta: 90.2MB). Free memory was 35.5MB in the beginning and 78.3MB in the end (delta: -42.8MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:13:05,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:13:05,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:13:05,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:13:05,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:13:05,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:13:05,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:13:05,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:13:05,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:13:05,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:13:05,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:13:05,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:13:05,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:13:05,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:13:05,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:13:05,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:13:05,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:13:05,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:13:05,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:13:05,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:13:05,481 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:13:05,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:13:05,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:13:05,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:13:05,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:13:05,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:13:05,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:13:05,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:13:05,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:13:05,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:13:05,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:13:05,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:13:05,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:13:05,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:13:05,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:13:05,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:13:05,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:13:05,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:13:05,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:13:05,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:13:05,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:13:05,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:13:05,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:13:05,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:13:05,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:13:05,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:13:05,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:13:05,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:13:05,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:13:05,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:13:05,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:13:05,534 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:13:05,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:13:05,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:13:05,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:13:05,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:13:05,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:13:05,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:13:05,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:13:05,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:13:05,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:13:05,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:13:05,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:13:05,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:13:05,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:13:05,538 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-21 11:13:05,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:13:05,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:13:05,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:13:05,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:13:05,826 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:13:05,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 11:13:05,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9c6e805/a76415f265424bd1b063608d103114ce/FLAG66bb3985b [2022-07-21 11:13:06,587 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:13:06,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 11:13:06,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9c6e805/a76415f265424bd1b063608d103114ce/FLAG66bb3985b [2022-07-21 11:13:06,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9c6e805/a76415f265424bd1b063608d103114ce [2022-07-21 11:13:06,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:13:06,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:13:06,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:13:06,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:13:06,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:13:06,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:13:06" (1/1) ... [2022-07-21 11:13:06,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51608589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:06, skipping insertion in model container [2022-07-21 11:13:06,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:13:06" (1/1) ... [2022-07-21 11:13:06,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:13:06,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:13:07,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-21 11:13:09,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:13:09,307 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:13:09,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:13:09,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-21 11:13:09,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:13:09,723 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:13:09,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-21 11:13:10,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:13:10,175 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:13:10,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10 WrapperNode [2022-07-21 11:13:10,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:13:10,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:13:10,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:13:10,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:13:10,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,540 INFO L137 Inliner]: procedures = 451, calls = 5982, calls flagged for inlining = 178, calls inlined = 156, statements flattened = 7209 [2022-07-21 11:13:10,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:13:10,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:13:10,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:13:10,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:13:10,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:13:10,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:13:10,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:13:10,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:13:10,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (1/1) ... [2022-07-21 11:13:10,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:13:10,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:13:10,773 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 11:13:10,800 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 11:13:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-21 11:13:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-21 11:13:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-21 11:13:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-21 11:13:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 11:13:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 11:13:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 11:13:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-21 11:13:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-21 11:13:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:13:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:13:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:13:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:13:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:13:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:13:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-21 11:13:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-21 11:13:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:13:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:13:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 11:13:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 11:13:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:13:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:13:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-21 11:13:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-21 11:13:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-21 11:13:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-21 11:13:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-21 11:13:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-21 11:13:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:13:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:13:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 11:13:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 11:13:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 11:13:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 11:13:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-21 11:13:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-21 11:13:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:13:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 11:13:10,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:13:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 11:13:10,831 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 11:13:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:13:10,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:13:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-21 11:13:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-21 11:13:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-21 11:13:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-21 11:13:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:13:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:13:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:13:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:13:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-21 11:13:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-21 11:13:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:13:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:13:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-21 11:13:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-21 11:13:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:13:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:13:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:13:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:13:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-21 11:13:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-21 11:13:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:13:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:13:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:13:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:13:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:13:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 11:13:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 11:13:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:13:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:13:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 11:13:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 11:13:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-21 11:13:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-21 11:13:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 11:13:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 11:13:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 11:13:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 11:13:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:13:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-21 11:13:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-21 11:13:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 11:13:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 11:13:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:13:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:13:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 11:13:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 11:13:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-07-21 11:13:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-07-21 11:13:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:13:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:13:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:13:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-21 11:13:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-21 11:13:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:13:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:13:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:13:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:13:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:13:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:13:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:13:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 11:13:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 11:13:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 11:13:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 11:13:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-21 11:13:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 11:13:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 11:13:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-21 11:13:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-21 11:13:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:13:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 11:13:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 11:13:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:13:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 11:13:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 11:13:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 11:13:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-21 11:13:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-21 11:13:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 11:13:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 11:13:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 11:13:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 11:13:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 11:13:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 11:13:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-21 11:13:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-21 11:13:11,592 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:13:11,594 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:13:15,500 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:14:05,218 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:14:05,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:14:05,239 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 11:14:05,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:14:05 BoogieIcfgContainer [2022-07-21 11:14:05,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:14:05,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:14:05,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:14:05,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:14:05,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:13:06" (1/3) ... [2022-07-21 11:14:05,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3123638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:14:05, skipping insertion in model container [2022-07-21 11:14:05,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:13:10" (2/3) ... [2022-07-21 11:14:05,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3123638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:14:05, skipping insertion in model container [2022-07-21 11:14:05,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:14:05" (3/3) ... [2022-07-21 11:14:05,254 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 11:14:05,263 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:14:05,264 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:14:05,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:14:05,335 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@626eb03a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10b51191 [2022-07-21 11:14:05,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:14:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) [2022-07-21 11:14:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 11:14:05,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:05,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:05,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:05,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:05,354 INFO L85 PathProgramCache]: Analyzing trace with hash 26763159, now seen corresponding path program 1 times [2022-07-21 11:14:05,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:05,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240156065] [2022-07-21 11:14:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:05,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:05,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:05,372 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 11:14:05,402 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 11:14:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:10,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:14:10,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:14:10,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:10,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:10,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240156065] [2022-07-21 11:14:10,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240156065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:10,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:10,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:14:10,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447394622] [2022-07-21 11:14:10,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:10,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:14:10,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:14:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:14:10,917 INFO L87 Difference]: Start difference. First operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 11:14:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:11,221 INFO L93 Difference]: Finished difference Result 3558 states and 5060 transitions. [2022-07-21 11:14:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:14:11,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-21 11:14:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:11,239 INFO L225 Difference]: With dead ends: 3558 [2022-07-21 11:14:11,240 INFO L226 Difference]: Without dead ends: 1742 [2022-07-21 11:14:11,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:14:11,253 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:11,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:14:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-21 11:14:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-21 11:14:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1232 states have (on average 1.2962662337662338) internal successors, (1597), 1255 states have internal predecessors, (1597), 410 states have call successors, (410), 99 states have call predecessors, (410), 99 states have return successors, (410), 406 states have call predecessors, (410), 409 states have call successors, (410) [2022-07-21 11:14:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2417 transitions. [2022-07-21 11:14:11,375 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2417 transitions. Word has length 30 [2022-07-21 11:14:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:11,375 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2417 transitions. [2022-07-21 11:14:11,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 11:14:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2417 transitions. [2022-07-21 11:14:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-21 11:14:11,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:11,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:11,519 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 11:14:11,600 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 11:14:11,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:11,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114825, now seen corresponding path program 1 times [2022-07-21 11:14:11,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:11,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278970156] [2022-07-21 11:14:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:11,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:11,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:11,610 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 11:14:11,611 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 11:14:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:17,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:14:17,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:14:17,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:14:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:14:17,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:17,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278970156] [2022-07-21 11:14:17,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278970156] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:14:17,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:14:17,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 11:14:17,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046676563] [2022-07-21 11:14:17,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:14:17,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:14:17,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:17,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:14:17,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:14:17,660 INFO L87 Difference]: Start difference. First operand 1742 states and 2417 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 11:14:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:18,482 INFO L93 Difference]: Finished difference Result 3488 states and 4848 transitions. [2022-07-21 11:14:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 11:14:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-21 11:14:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:18,493 INFO L225 Difference]: With dead ends: 3488 [2022-07-21 11:14:18,493 INFO L226 Difference]: Without dead ends: 1753 [2022-07-21 11:14:18,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:14:18,503 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 14 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12018 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:18,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12018 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:14:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-07-21 11:14:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1751. [2022-07-21 11:14:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1240 states have (on average 1.2991935483870967) internal successors, (1611), 1263 states have internal predecessors, (1611), 410 states have call successors, (410), 100 states have call predecessors, (410), 100 states have return successors, (411), 406 states have call predecessors, (411), 409 states have call successors, (411) [2022-07-21 11:14:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2432 transitions. [2022-07-21 11:14:18,559 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2432 transitions. Word has length 31 [2022-07-21 11:14:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:18,560 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2432 transitions. [2022-07-21 11:14:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 11:14:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2432 transitions. [2022-07-21 11:14:18,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 11:14:18,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:18,562 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:18,698 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 11:14:18,787 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 11:14:18,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash -384185321, now seen corresponding path program 2 times [2022-07-21 11:14:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:18,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992123921] [2022-07-21 11:14:18,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:14:18,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:18,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:18,798 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 11:14:18,813 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 11:14:23,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:14:23,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:14:24,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:14:24,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 11:14:24,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:24,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992123921] [2022-07-21 11:14:24,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992123921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:24,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:24,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:14:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810173758] [2022-07-21 11:14:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:14:24,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:24,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:14:24,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:24,248 INFO L87 Difference]: Start difference. First operand 1751 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 11:14:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:24,833 INFO L93 Difference]: Finished difference Result 5222 states and 7260 transitions. [2022-07-21 11:14:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:14:24,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-21 11:14:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:24,857 INFO L225 Difference]: With dead ends: 5222 [2022-07-21 11:14:24,858 INFO L226 Difference]: Without dead ends: 3479 [2022-07-21 11:14:24,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:24,870 INFO L413 NwaCegarLoop]: 2830 mSDtfsCounter, 2381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:24,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 5228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:14:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-21 11:14:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-21 11:14:24,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2461 states have (on average 1.2998780983340106) internal successors, (3199), 2506 states have internal predecessors, (3199), 816 states have call successors, (816), 199 states have call predecessors, (816), 199 states have return successors, (818), 809 states have call predecessors, (818), 815 states have call successors, (818) [2022-07-21 11:14:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4833 transitions. [2022-07-21 11:14:24,979 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4833 transitions. Word has length 34 [2022-07-21 11:14:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4833 transitions. [2022-07-21 11:14:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 11:14:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4833 transitions. [2022-07-21 11:14:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 11:14:24,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:24,982 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:25,127 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 11:14:25,195 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 11:14:25,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1036926639, now seen corresponding path program 1 times [2022-07-21 11:14:25,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:25,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431411972] [2022-07-21 11:14:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:25,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:25,203 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 11:14:25,204 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 11:14:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:30,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 5098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:14:30,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 11:14:31,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:31,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:31,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431411972] [2022-07-21 11:14:31,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431411972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:31,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:31,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:14:31,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111734733] [2022-07-21 11:14:31,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:31,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:14:31,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:31,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:14:31,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:14:31,316 INFO L87 Difference]: Start difference. First operand 3477 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-21 11:14:32,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:32,283 INFO L93 Difference]: Finished difference Result 10412 states and 14529 transitions. [2022-07-21 11:14:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:14:32,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-21 11:14:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:32,330 INFO L225 Difference]: With dead ends: 10412 [2022-07-21 11:14:32,330 INFO L226 Difference]: Without dead ends: 6938 [2022-07-21 11:14:32,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:14:32,356 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 2384 mSDsluCounter, 8194 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 11086 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:32,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 11086 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:14:32,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-21 11:14:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6928. [2022-07-21 11:14:32,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4901 states have (on average 1.29973474801061) internal successors, (6370), 4990 states have internal predecessors, (6370), 1629 states have call successors, (1629), 397 states have call predecessors, (1629), 397 states have return successors, (1669), 1616 states have call predecessors, (1669), 1628 states have call successors, (1669) [2022-07-21 11:14:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 9668 transitions. [2022-07-21 11:14:32,590 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 9668 transitions. Word has length 38 [2022-07-21 11:14:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:32,591 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 9668 transitions. [2022-07-21 11:14:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-21 11:14:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 9668 transitions. [2022-07-21 11:14:32,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 11:14:32,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:32,604 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:32,753 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 11:14:32,833 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 11:14:32,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:32,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:32,834 INFO L85 PathProgramCache]: Analyzing trace with hash -915869094, now seen corresponding path program 1 times [2022-07-21 11:14:32,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:32,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818630792] [2022-07-21 11:14:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:32,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:32,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:32,840 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 11:14:32,842 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 11:14:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:38,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:14:38,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:38,976 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 11:14:38,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:38,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:38,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818630792] [2022-07-21 11:14:38,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818630792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:38,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:38,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:14:38,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515814665] [2022-07-21 11:14:38,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:38,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:14:38,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:38,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:14:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:38,983 INFO L87 Difference]: Start difference. First operand 6928 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:14:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:39,887 INFO L93 Difference]: Finished difference Result 19528 states and 27122 transitions. [2022-07-21 11:14:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:14:39,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2022-07-21 11:14:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:39,957 INFO L225 Difference]: With dead ends: 19528 [2022-07-21 11:14:39,957 INFO L226 Difference]: Without dead ends: 12608 [2022-07-21 11:14:39,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:39,987 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1987 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:39,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5221 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:14:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-07-21 11:14:40,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12486. [2022-07-21 11:14:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 8841 states have (on average 1.2943105983486032) internal successors, (11443), 9010 states have internal predecessors, (11443), 2899 states have call successors, (2899), 749 states have call predecessors, (2899), 745 states have return successors, (2969), 2862 states have call predecessors, (2969), 2898 states have call successors, (2969) [2022-07-21 11:14:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 17311 transitions. [2022-07-21 11:14:40,381 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 17311 transitions. Word has length 147 [2022-07-21 11:14:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:40,382 INFO L495 AbstractCegarLoop]: Abstraction has 12486 states and 17311 transitions. [2022-07-21 11:14:40,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:14:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 17311 transitions. [2022-07-21 11:14:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 11:14:40,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:40,396 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:40,541 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 11:14:40,600 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 11:14:40,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 79837402, now seen corresponding path program 1 times [2022-07-21 11:14:40,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:40,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43840698] [2022-07-21 11:14:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:40,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:40,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:40,616 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 11:14:40,628 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 11:14:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:46,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:14:46,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 11:14:46,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:46,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:46,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43840698] [2022-07-21 11:14:46,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43840698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:46,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:46,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:14:46,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862268610] [2022-07-21 11:14:46,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:46,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:14:46,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:14:46,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:46,811 INFO L87 Difference]: Start difference. First operand 12486 states and 17311 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:14:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:47,680 INFO L93 Difference]: Finished difference Result 32612 states and 45079 transitions. [2022-07-21 11:14:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:14:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-21 11:14:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:47,773 INFO L225 Difference]: With dead ends: 32612 [2022-07-21 11:14:47,774 INFO L226 Difference]: Without dead ends: 20130 [2022-07-21 11:14:47,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:47,825 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 1753 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:47,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 6089 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:14:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20130 states. [2022-07-21 11:14:48,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20130 to 20096. [2022-07-21 11:14:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20096 states, 14259 states have (on average 1.2925170068027212) internal successors, (18430), 14535 states have internal predecessors, (18430), 4591 states have call successors, (4591), 1250 states have call predecessors, (4591), 1245 states have return successors, (4694), 4542 states have call predecessors, (4694), 4590 states have call successors, (4694) [2022-07-21 11:14:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20096 states to 20096 states and 27715 transitions. [2022-07-21 11:14:48,593 INFO L78 Accepts]: Start accepts. Automaton has 20096 states and 27715 transitions. Word has length 157 [2022-07-21 11:14:48,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:48,593 INFO L495 AbstractCegarLoop]: Abstraction has 20096 states and 27715 transitions. [2022-07-21 11:14:48,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:14:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 20096 states and 27715 transitions. [2022-07-21 11:14:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 11:14:48,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:48,618 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:48,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-21 11:14:48,839 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 11:14:48,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:48,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1663908607, now seen corresponding path program 1 times [2022-07-21 11:14:48,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:48,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63197579] [2022-07-21 11:14:48,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:48,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:48,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:48,958 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 11:14:48,959 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 11:14:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:55,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:14:55,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 11:14:55,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:55,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:55,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63197579] [2022-07-21 11:14:55,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63197579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:55,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:55,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:14:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281866702] [2022-07-21 11:14:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:55,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:14:55,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:14:55,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:55,513 INFO L87 Difference]: Start difference. First operand 20096 states and 27715 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 11:14:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:56,589 INFO L93 Difference]: Finished difference Result 48376 states and 66581 transitions. [2022-07-21 11:14:56,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:14:56,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-07-21 11:14:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:56,728 INFO L225 Difference]: With dead ends: 48376 [2022-07-21 11:14:56,728 INFO L226 Difference]: Without dead ends: 28288 [2022-07-21 11:14:56,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:56,802 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:56,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5433 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:14:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-21 11:14:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 28232. [2022-07-21 11:14:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 20059 states have (on average 1.2894959868388254) internal successors, (25866), 20451 states have internal predecessors, (25866), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:14:57,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 38737 transitions. [2022-07-21 11:14:57,873 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 38737 transitions. Word has length 173 [2022-07-21 11:14:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:57,876 INFO L495 AbstractCegarLoop]: Abstraction has 28232 states and 38737 transitions. [2022-07-21 11:14:57,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 11:14:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 38737 transitions. [2022-07-21 11:14:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-21 11:14:57,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:57,899 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:14:58,065 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 11:14:58,111 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 11:14:58,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:58,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:58,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1881706839, now seen corresponding path program 1 times [2022-07-21 11:14:58,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:58,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084561255] [2022-07-21 11:14:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:58,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:58,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:58,332 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 11:14:58,333 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 11:15:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:04,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 5629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:15:04,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 11:15:04,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:04,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084561255] [2022-07-21 11:15:04,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084561255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:04,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:04,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:15:04,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962088262] [2022-07-21 11:15:04,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:04,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:15:04,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:15:04,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:15:04,721 INFO L87 Difference]: Start difference. First operand 28232 states and 38737 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:15:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:06,718 INFO L93 Difference]: Finished difference Result 67128 states and 92145 transitions. [2022-07-21 11:15:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:15:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-21 11:15:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:06,909 INFO L225 Difference]: With dead ends: 67128 [2022-07-21 11:15:06,910 INFO L226 Difference]: Without dead ends: 38912 [2022-07-21 11:15:07,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:15:07,018 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 2472 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 11381 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:07,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 11381 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 11:15:07,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38912 states. [2022-07-21 11:15:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38912 to 28248. [2022-07-21 11:15:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:15:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-21 11:15:08,185 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 190 [2022-07-21 11:15:08,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:08,186 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-21 11:15:08,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:15:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-21 11:15:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 11:15:08,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:08,208 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:15:08,370 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 11:15:08,431 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 11:15:08,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:08,432 INFO L85 PathProgramCache]: Analyzing trace with hash -355262749, now seen corresponding path program 1 times [2022-07-21 11:15:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:08,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166197507] [2022-07-21 11:15:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:08,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:08,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:08,439 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 11:15:08,479 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 11:15:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:15,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 5682 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:15:15,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 11:15:15,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:15,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:15,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166197507] [2022-07-21 11:15:15,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166197507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:15,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:15,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:15:15,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134644818] [2022-07-21 11:15:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:15:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:15,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:15:15,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:15:15,782 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 11:15:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:17,762 INFO L93 Difference]: Finished difference Result 67168 states and 92185 transitions. [2022-07-21 11:15:17,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:15:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2022-07-21 11:15:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:17,912 INFO L225 Difference]: With dead ends: 67168 [2022-07-21 11:15:17,913 INFO L226 Difference]: Without dead ends: 38936 [2022-07-21 11:15:18,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:15:18,009 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 2472 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:18,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 10485 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 11:15:18,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38936 states. [2022-07-21 11:15:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38936 to 28248. [2022-07-21 11:15:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:15:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-21 11:15:19,206 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 202 [2022-07-21 11:15:19,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:19,208 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-21 11:15:19,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 11:15:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-21 11:15:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-21 11:15:19,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:19,235 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:15:19,407 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 11:15:19,450 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 11:15:19,450 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash -998761700, now seen corresponding path program 1 times [2022-07-21 11:15:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:19,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630626268] [2022-07-21 11:15:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:19,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:19,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:19,463 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 11:15:19,484 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 11:15:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:27,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 5959 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:15:27,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 11:15:28,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:28,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:28,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630626268] [2022-07-21 11:15:28,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630626268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:28,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:28,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:15:28,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830879494] [2022-07-21 11:15:28,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:28,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:15:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:15:28,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:28,431 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 11:15:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:29,155 INFO L93 Difference]: Finished difference Result 56480 states and 77488 transitions. [2022-07-21 11:15:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:15:29,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 241 [2022-07-21 11:15:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:29,367 INFO L225 Difference]: With dead ends: 56480 [2022-07-21 11:15:29,367 INFO L226 Difference]: Without dead ends: 28248 [2022-07-21 11:15:29,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:29,446 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:29,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2411 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:15:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2022-07-21 11:15:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 28248. [2022-07-21 11:15:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2888667496886674) internal successors, (25874), 20467 states have internal predecessors, (25874), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:15:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38745 transitions. [2022-07-21 11:15:30,553 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38745 transitions. Word has length 241 [2022-07-21 11:15:30,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:30,553 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38745 transitions. [2022-07-21 11:15:30,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 11:15:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38745 transitions. [2022-07-21 11:15:30,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-21 11:15:30,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:30,590 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:15:30,758 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 11:15:30,791 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 11:15:30,791 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:30,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash 736352434, now seen corresponding path program 1 times [2022-07-21 11:15:30,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:30,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661586144] [2022-07-21 11:15:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:30,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:30,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:30,799 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 11:15:30,801 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 11:15:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:40,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 6015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:15:40,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 11:15:40,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:40,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661586144] [2022-07-21 11:15:40,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661586144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:40,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:40,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:15:40,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357793870] [2022-07-21 11:15:40,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:40,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:15:40,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:40,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:15:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:40,528 INFO L87 Difference]: Start difference. First operand 28248 states and 38745 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:15:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:41,351 INFO L93 Difference]: Finished difference Result 56488 states and 77488 transitions. [2022-07-21 11:15:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:15:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-21 11:15:41,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:41,507 INFO L225 Difference]: With dead ends: 56488 [2022-07-21 11:15:41,508 INFO L226 Difference]: Without dead ends: 28256 [2022-07-21 11:15:41,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:41,611 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:41,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:15:41,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-21 11:15:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-21 11:15:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.288751680525818) internal successors, (25882), 20475 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:15:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38753 transitions. [2022-07-21 11:15:42,559 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38753 transitions. Word has length 253 [2022-07-21 11:15:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:42,559 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38753 transitions. [2022-07-21 11:15:42,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:15:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38753 transitions. [2022-07-21 11:15:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-21 11:15:42,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:42,574 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:15:42,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-21 11:15:42,799 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 11:15:42,800 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1263746484, now seen corresponding path program 1 times [2022-07-21 11:15:42,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:42,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843659034] [2022-07-21 11:15:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:42,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:42,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:42,807 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 11:15:42,809 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 11:15:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:54,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:15:54,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 11:15:54,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:54,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:54,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843659034] [2022-07-21 11:15:54,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843659034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:54,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:54,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:15:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190766636] [2022-07-21 11:15:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:54,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:15:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:15:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:54,769 INFO L87 Difference]: Start difference. First operand 28256 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:15:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:55,812 INFO L93 Difference]: Finished difference Result 56496 states and 77632 transitions. [2022-07-21 11:15:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:15:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-21 11:15:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:55,958 INFO L225 Difference]: With dead ends: 56496 [2022-07-21 11:15:55,958 INFO L226 Difference]: Without dead ends: 28256 [2022-07-21 11:15:56,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:56,068 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2338 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:56,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 2404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:15:56,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-21 11:15:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-21 11:15:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.2857640790718519) internal successors, (25822), 20475 states have internal predecessors, (25822), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-21 11:15:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38693 transitions. [2022-07-21 11:15:57,116 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38693 transitions. Word has length 253 [2022-07-21 11:15:57,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:57,117 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38693 transitions. [2022-07-21 11:15:57,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:15:57,118 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38693 transitions. [2022-07-21 11:15:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-21 11:15:57,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:57,133 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:15:57,316 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 11:15:57,343 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 11:15:57,343 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1912339254, now seen corresponding path program 1 times [2022-07-21 11:15:57,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:57,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562903124] [2022-07-21 11:15:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:57,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:57,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:57,351 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 11:15:57,352 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 11:16:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:08,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-21 11:16:08,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 11:16:08,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:08,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562903124] [2022-07-21 11:16:08,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562903124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:08,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:08,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:16:08,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157538661] [2022-07-21 11:16:08,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:08,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:16:08,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:08,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:16:08,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:16:08,909 INFO L87 Difference]: Start difference. First operand 28256 states and 38693 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:16:11,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:16:13,808 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 11:16:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:15,535 INFO L93 Difference]: Finished difference Result 60436 states and 83406 transitions. [2022-07-21 11:16:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:16:15,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-21 11:16:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:15,697 INFO L225 Difference]: With dead ends: 60436 [2022-07-21 11:16:15,697 INFO L226 Difference]: Without dead ends: 32196 [2022-07-21 11:16:15,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:16:15,792 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 2280 mSDsluCounter, 16453 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:16:15,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 19384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-07-21 11:16:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32196 states. [2022-07-21 11:16:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32196 to 28312. [2022-07-21 11:16:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 20131 states have (on average 1.285082708260891) internal successors, (25870), 20523 states have internal predecessors, (25870), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1813 states have return successors, (6552), 6310 states have call predecessors, (6552), 6366 states have call successors, (6552) [2022-07-21 11:16:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 38789 transitions. [2022-07-21 11:16:16,873 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 38789 transitions. Word has length 253 [2022-07-21 11:16:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:16,874 INFO L495 AbstractCegarLoop]: Abstraction has 28312 states and 38789 transitions. [2022-07-21 11:16:16,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 11:16:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 38789 transitions. [2022-07-21 11:16:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 11:16:16,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:16,891 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:16:17,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-21 11:16:17,107 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 11:16:17,108 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2144538835, now seen corresponding path program 1 times [2022-07-21 11:16:17,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:17,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489643585] [2022-07-21 11:16:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:17,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:17,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:17,115 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 11:16:17,117 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 11:16:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:27,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 6034 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-21 11:16:27,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 11:16:27,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:27,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:27,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489643585] [2022-07-21 11:16:27,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489643585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:27,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:27,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:16:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543905222] [2022-07-21 11:16:27,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:16:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:16:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:16:27,734 INFO L87 Difference]: Start difference. First operand 28312 states and 38789 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-21 11:16:30,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:16:32,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:16:33,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:33,174 INFO L93 Difference]: Finished difference Result 56528 states and 77476 transitions. [2022-07-21 11:16:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:16:33,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 259 [2022-07-21 11:16:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:33,302 INFO L225 Difference]: With dead ends: 56528 [2022-07-21 11:16:33,302 INFO L226 Difference]: Without dead ends: 28232 [2022-07-21 11:16:33,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:16:33,388 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 7 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14435 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:16:33,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14435 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-07-21 11:16:33,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28232 states. [2022-07-21 11:16:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28232 to 28200. [2022-07-21 11:16:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 20043 states have (on average 1.284139100932994) internal successors, (25738), 20435 states have internal predecessors, (25738), 6347 states have call successors, (6347), 1806 states have call predecessors, (6347), 1809 states have return successors, (6532), 6290 states have call predecessors, (6532), 6346 states have call successors, (6532) [2022-07-21 11:16:34,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 38617 transitions. [2022-07-21 11:16:34,368 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 38617 transitions. Word has length 259 [2022-07-21 11:16:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:34,369 INFO L495 AbstractCegarLoop]: Abstraction has 28200 states and 38617 transitions. [2022-07-21 11:16:34,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-21 11:16:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 38617 transitions. [2022-07-21 11:16:34,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-21 11:16:34,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:34,382 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:16:34,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 11:16:34,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:34,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash 31580642, now seen corresponding path program 1 times [2022-07-21 11:16:34,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:34,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994583706] [2022-07-21 11:16:34,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:34,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:34,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:34,604 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:16:34,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 11:16:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:41,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:16:41,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-21 11:16:44,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:44,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:44,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994583706] [2022-07-21 11:16:44,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994583706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:44,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:44,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:16:44,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378812832] [2022-07-21 11:16:44,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:44,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:16:44,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:16:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:16:44,624 INFO L87 Difference]: Start difference. First operand 28200 states and 38617 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 11:16:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:56,516 INFO L93 Difference]: Finished difference Result 84624 states and 115979 transitions. [2022-07-21 11:16:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:16:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 295 [2022-07-21 11:16:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:56,884 INFO L225 Difference]: With dead ends: 84624 [2022-07-21 11:16:56,885 INFO L226 Difference]: Without dead ends: 56440 [2022-07-21 11:16:57,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:16:57,035 INFO L413 NwaCegarLoop]: 2729 mSDtfsCounter, 2310 mSDsluCounter, 5709 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:16:57,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 8438 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-07-21 11:16:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56440 states. [2022-07-21 11:16:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56440 to 56336. [2022-07-21 11:16:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56336 states, 40003 states have (on average 1.2842036847236458) internal successors, (51372), 40907 states have internal predecessors, (51372), 12691 states have call successors, (12691), 3610 states have call predecessors, (12691), 3641 states have return successors, (13146), 12482 states have call predecessors, (13146), 12690 states have call successors, (13146) [2022-07-21 11:16:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56336 states to 56336 states and 77209 transitions. [2022-07-21 11:16:59,351 INFO L78 Accepts]: Start accepts. Automaton has 56336 states and 77209 transitions. Word has length 295 [2022-07-21 11:16:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:59,364 INFO L495 AbstractCegarLoop]: Abstraction has 56336 states and 77209 transitions. [2022-07-21 11:16:59,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 11:16:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 56336 states and 77209 transitions. [2022-07-21 11:16:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-21 11:16:59,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:59,392 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:16:59,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 11:16:59,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:59,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:59,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -770997336, now seen corresponding path program 1 times [2022-07-21 11:16:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:59,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971980507] [2022-07-21 11:16:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:59,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:59,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:59,616 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:16:59,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 11:17:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:17:07,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 5948 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:17:07,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:17:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-21 11:17:11,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:17:11,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:17:11,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971980507] [2022-07-21 11:17:11,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971980507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:17:11,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:17:11,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:17:11,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199277725] [2022-07-21 11:17:11,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:17:11,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:17:11,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:17:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:17:11,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:17:11,253 INFO L87 Difference]: Start difference. First operand 56336 states and 77209 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29)