./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN --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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:27:07,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:07,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:07,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:07,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:07,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:07,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:07,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:07,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:07,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:07,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:07,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:07,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:07,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:07,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:07,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:07,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:07,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:07,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:07,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:07,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:07,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:07,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:07,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:07,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:07,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:07,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:07,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:07,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:07,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:07,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:07,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:07,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:07,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:07,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:07,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:07,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:07,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:07,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:07,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:07,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:07,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:07,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:07,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:07,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:07,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:07,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:07,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:07,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:07,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:07,927 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:07,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:07,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:07,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:07,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:07,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:07,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:07,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:07,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:07,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:07,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:07,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:07,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:07,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:07,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:07,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:07,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:07,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:07,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:07,931 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:07,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:07,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:07,932 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-11-20 09:27:08,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:08,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:08,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:08,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:08,266 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:08,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-20 09:27:11,412 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:12,183 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:12,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-20 09:27:12,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/a63205f23/36076dbe23284015a504af409da6a4d3/FLAG2ff31c4bb [2022-11-20 09:27:12,265 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/a63205f23/36076dbe23284015a504af409da6a4d3 [2022-11-20 09:27:12,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:12,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:12,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:12,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:12,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:12,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307194a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12, skipping insertion in model container [2022-11-20 09:27:12,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:12,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:13,265 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 09:27:13,278 INFO L158 Benchmark]: Toolchain (without parser) took 1003.96ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 50.0MB in the end (delta: 74.9MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-20 09:27:13,278 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:13,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 997.93ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 50.0MB in the end (delta: 74.9MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-20 09:27:13,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 997.93ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 50.0MB in the end (delta: 74.9MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN --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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:27:15,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:15,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:15,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:15,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:15,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:15,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:15,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:15,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:15,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:15,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:15,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:15,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:15,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:15,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:15,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:15,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:15,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:15,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:15,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:15,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:15,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:15,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:15,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:15,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:15,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:15,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:15,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:15,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:15,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:15,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:15,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:15,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:15,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:15,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:15,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:15,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:15,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:15,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:15,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:15,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:15,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:27:15,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:15,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:15,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:15,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:15,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:15,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:15,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:15,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:15,810 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:15,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:15,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:15,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:15,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:15,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:15,812 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:15,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:27:15,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:27:15,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:15,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:15,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:15,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:15,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:15,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:15,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:15,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:15,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:15,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:15,815 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:27:15,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:27:15,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:15,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:15,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:15,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:27:15,817 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-11-20 09:27:16,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:16,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:16,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:16,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:16,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:16,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-20 09:27:19,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:20,323 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:20,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-20 09:27:20,385 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/016a0283d/6c35eec2f8104376ab1d9cd34f68ddc7/FLAG78b8cbede [2022-11-20 09:27:20,403 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/data/016a0283d/6c35eec2f8104376ab1d9cd34f68ddc7 [2022-11-20 09:27:20,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:20,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:20,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:20,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:20,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:20,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:20" (1/1) ... [2022-11-20 09:27:20,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3598884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:20, skipping insertion in model container [2022-11-20 09:27:20,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:20" (1/1) ... [2022-11-20 09:27:20,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:20,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:24,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-11-20 09:27:24,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-11-20 09:27:24,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-11-20 09:27:24,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-11-20 09:27:24,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:24,668 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:27:24,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:25,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-11-20 09:27:25,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-11-20 09:27:25,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-11-20 09:27:25,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-11-20 09:27:25,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:25,385 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:25,972 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-11-20 09:27:25,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-11-20 09:27:25,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-11-20 09:27:25,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-11-20 09:27:25,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:26,302 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:26,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26 WrapperNode [2022-11-20 09:27:26,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:26,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:26,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:26,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:26,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,841 INFO L138 Inliner]: procedures = 557, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8224 [2022-11-20 09:27:26,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:26,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:26,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:26,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:26,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:27,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:27,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:27,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:27,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:27,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:27,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:27,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-20 09:27:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-20 09:27:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:27:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:27:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-20 09:27:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-20 09:27:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-11-20 09:27:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-11-20 09:27:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-11-20 09:27:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-20 09:27:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-11-20 09:27:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-11-20 09:27:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-11-20 09:27:27,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-11-20 09:27:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 09:27:27,439 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 09:27:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-11-20 09:27:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-11-20 09:27:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 09:27:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 09:27:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 09:27:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 09:27:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-11-20 09:27:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-11-20 09:27:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-11-20 09:27:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-11-20 09:27:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-11-20 09:27:27,443 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-11-20 09:27:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:27:27,443 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:27:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-11-20 09:27:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-11-20 09:27:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:27:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:27:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-11-20 09:27:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-11-20 09:27:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 09:27:27,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 09:27:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:27:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:27:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 09:27:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 09:27:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 09:27:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 09:27:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-11-20 09:27:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-11-20 09:27:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-11-20 09:27:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-11-20 09:27:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:27:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:27:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:27:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:27:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-11-20 09:27:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-11-20 09:27:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 09:27:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 09:27:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 09:27:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 09:27:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-11-20 09:27:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-11-20 09:27:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:27:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:27:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:27:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 09:27:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 09:27:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-20 09:27:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-20 09:27:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-11-20 09:27:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-11-20 09:27:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-20 09:27:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-11-20 09:27:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-11-20 09:27:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:27:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:27:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:27:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:27:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-11-20 09:27:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-11-20 09:27:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-11-20 09:27:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-11-20 09:27:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 09:27:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 09:27:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-11-20 09:27:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-11-20 09:27:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:27:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:27:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-11-20 09:27:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-11-20 09:27:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:27:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:27:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 09:27:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 09:27:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 09:27:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 09:27:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:27:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:27:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 09:27:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 09:27:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-11-20 09:27:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-11-20 09:27:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-11-20 09:27:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-11-20 09:27:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 09:27:27,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 09:27:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:27:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:27:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-11-20 09:27:27,475 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-11-20 09:27:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-11-20 09:27:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-11-20 09:27:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 09:27:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 09:27:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:27:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:27:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 09:27:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 09:27:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 09:27:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 09:27:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-11-20 09:27:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-11-20 09:27:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 09:27:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 09:27:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-11-20 09:27:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-11-20 09:27:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 09:27:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 09:27:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:27:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:27:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 09:27:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 09:27:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:27:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-11-20 09:27:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-11-20 09:27:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:27:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-11-20 09:27:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-11-20 09:27:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:27:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-11-20 09:27:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-11-20 09:27:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:27:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-11-20 09:27:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-11-20 09:27:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-11-20 09:27:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-11-20 09:27:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-11-20 09:27:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-11-20 09:27:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-11-20 09:27:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-11-20 09:27:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-11-20 09:27:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-11-20 09:27:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-11-20 09:27:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-11-20 09:27:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 09:27:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 09:27:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 09:27:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 09:27:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 09:27:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 09:27:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-11-20 09:27:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-11-20 09:27:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 09:27:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 09:27:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-20 09:27:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-20 09:27:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-11-20 09:27:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-11-20 09:27:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:27:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:27:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:27:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-11-20 09:27:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-11-20 09:27:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 09:27:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 09:27:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-20 09:27:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-20 09:27:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:27:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:27:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:27:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-20 09:27:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-20 09:27:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-20 09:27:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-20 09:27:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 09:27:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 09:27:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 09:27:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-11-20 09:27:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-11-20 09:27:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 09:27:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 09:27:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 09:27:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 09:27:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-11-20 09:27:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-11-20 09:27:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 09:27:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 09:27:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-20 09:27:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-20 09:27:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-11-20 09:27:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-11-20 09:27:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-11-20 09:27:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-11-20 09:27:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-11-20 09:27:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-11-20 09:27:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-20 09:27:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-20 09:27:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:27:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:27:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 09:27:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 09:27:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-20 09:27:27,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-20 09:27:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 09:27:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 09:27:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 09:27:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 09:27:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:27:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:27:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-11-20 09:27:27,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-11-20 09:27:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-11-20 09:27:27,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-11-20 09:27:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-20 09:27:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-20 09:27:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-11-20 09:27:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-11-20 09:27:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 09:27:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 09:27:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-20 09:27:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-20 09:27:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:27:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:27:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:27:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:27:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-11-20 09:27:27,508 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-11-20 09:27:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 09:27:27,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 09:27:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-11-20 09:27:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-11-20 09:27:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 09:27:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 09:27:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 09:27:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 09:27:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:27:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:27:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-20 09:27:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-20 09:27:27,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:27:27,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:27:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 09:27:27,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 09:27:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-20 09:27:27,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-20 09:27:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:27:27,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:27:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 09:27:27,512 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 09:27:27,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:27,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:27,512 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-11-20 09:27:27,512 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-11-20 09:27:27,512 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 09:27:27,513 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 09:27:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-11-20 09:27:27,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-11-20 09:27:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:27,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-11-20 09:27:27,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-11-20 09:27:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:27:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:27:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:27:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:27:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:27,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-11-20 09:27:27,515 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-11-20 09:27:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-11-20 09:27:27,515 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-11-20 09:27:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-11-20 09:27:27,515 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-11-20 09:27:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-11-20 09:27:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-11-20 09:27:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 09:27:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 09:27:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-11-20 09:27:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-11-20 09:27:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 09:27:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 09:27:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-20 09:27:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-20 09:27:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-11-20 09:27:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-11-20 09:27:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-11-20 09:27:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-11-20 09:27:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-11-20 09:27:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-11-20 09:27:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-11-20 09:27:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-11-20 09:27:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-11-20 09:27:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-11-20 09:27:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-20 09:27:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-20 09:27:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-20 09:27:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-20 09:27:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:27:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:27:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 09:27:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 09:27:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-20 09:27:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-20 09:27:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-11-20 09:27:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-11-20 09:27:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-11-20 09:27:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-11-20 09:27:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-20 09:27:27,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-20 09:27:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:27:27,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:27:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 09:27:27,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 09:27:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 09:27:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 09:27:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:27:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:27:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-20 09:27:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-20 09:27:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-11-20 09:27:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-11-20 09:27:28,899 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:28,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:29,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:28:12,882 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:28:13,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:13,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:13,628 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 09:28:13,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:13 BoogieIcfgContainer [2022-11-20 09:28:13,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:13,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:13,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:13,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:13,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:20" (1/3) ... [2022-11-20 09:28:13,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a5d451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:13, skipping insertion in model container [2022-11-20 09:28:13,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (2/3) ... [2022-11-20 09:28:13,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a5d451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:13, skipping insertion in model container [2022-11-20 09:28:13,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:13" (3/3) ... [2022-11-20 09:28:13,647 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-20 09:28:13,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:13,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 09:28:13,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:13,793 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26bd1330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:13,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 09:28:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 3025 states, 2039 states have (on average 1.2717018146150074) internal successors, (2593), 2084 states have internal predecessors, (2593), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) [2022-11-20 09:28:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-20 09:28:13,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:13,834 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:13,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2097871470, now seen corresponding path program 1 times [2022-11-20 09:28:13,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:13,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85388312] [2022-11-20 09:28:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:13,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:13,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:13,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:28:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:16,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-11-20 09:28:16,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:16,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:16,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85388312] [2022-11-20 09:28:16,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85388312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:16,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:16,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:16,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422671585] [2022-11-20 09:28:16,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:16,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:16,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:16,914 INFO L87 Difference]: Start difference. First operand has 3025 states, 2039 states have (on average 1.2717018146150074) internal successors, (2593), 2084 states have internal predecessors, (2593), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:28:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:17,934 INFO L93 Difference]: Finished difference Result 8813 states and 12501 transitions. [2022-11-20 09:28:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:17,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2022-11-20 09:28:17,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:17,998 INFO L225 Difference]: With dead ends: 8813 [2022-11-20 09:28:17,998 INFO L226 Difference]: Without dead ends: 5811 [2022-11-20 09:28:18,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:18,035 INFO L413 NwaCegarLoop]: 4920 mSDtfsCounter, 4007 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4007 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:18,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4007 Valid, 9002 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:28:18,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5811 states. [2022-11-20 09:28:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5811 to 5809. [2022-11-20 09:28:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5809 states, 3914 states have (on average 1.2585590189064895) internal successors, (4926), 3993 states have internal predecessors, (4926), 1580 states have call successors, (1580), 314 states have call predecessors, (1580), 313 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2022-11-20 09:28:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5809 states to 5809 states and 8083 transitions. [2022-11-20 09:28:18,530 INFO L78 Accepts]: Start accepts. Automaton has 5809 states and 8083 transitions. Word has length 203 [2022-11-20 09:28:18,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:18,534 INFO L495 AbstractCegarLoop]: Abstraction has 5809 states and 8083 transitions. [2022-11-20 09:28:18,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:28:18,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5809 states and 8083 transitions. [2022-11-20 09:28:18,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-20 09:28:18,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:18,558 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:18,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:18,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:18,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:18,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1083086825, now seen corresponding path program 1 times [2022-11-20 09:28:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:18,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987548155] [2022-11-20 09:28:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:18,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:18,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:18,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:18,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:28:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:21,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-11-20 09:28:21,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:21,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987548155] [2022-11-20 09:28:21,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987548155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:21,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594310455] [2022-11-20 09:28:21,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:21,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:21,573 INFO L87 Difference]: Start difference. First operand 5809 states and 8083 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 09:28:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:22,825 INFO L93 Difference]: Finished difference Result 13623 states and 18909 transitions. [2022-11-20 09:28:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:22,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 224 [2022-11-20 09:28:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:22,906 INFO L225 Difference]: With dead ends: 13623 [2022-11-20 09:28:22,907 INFO L226 Difference]: Without dead ends: 7851 [2022-11-20 09:28:22,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:22,945 INFO L413 NwaCegarLoop]: 4785 mSDtfsCounter, 3385 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3385 SdHoareTripleChecker+Valid, 8825 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:22,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3385 Valid, 8825 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:28:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7851 states. [2022-11-20 09:28:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7851 to 7842. [2022-11-20 09:28:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7842 states, 5298 states have (on average 1.253114382785957) internal successors, (6639), 5403 states have internal predecessors, (6639), 2102 states have call successors, (2102), 442 states have call predecessors, (2102), 440 states have return successors, (2099), 2065 states have call predecessors, (2099), 2099 states have call successors, (2099) [2022-11-20 09:28:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 10840 transitions. [2022-11-20 09:28:23,516 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 10840 transitions. Word has length 224 [2022-11-20 09:28:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:23,517 INFO L495 AbstractCegarLoop]: Abstraction has 7842 states and 10840 transitions. [2022-11-20 09:28:23,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 09:28:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 10840 transitions. [2022-11-20 09:28:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-20 09:28:23,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:23,528 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-20 09:28:23,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:23,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:23,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash -157206097, now seen corresponding path program 1 times [2022-11-20 09:28:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:23,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675603566] [2022-11-20 09:28:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:23,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:23,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:23,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:23,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:28:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:26,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:26,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2022-11-20 09:28:26,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:26,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:26,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675603566] [2022-11-20 09:28:26,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675603566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:26,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:26,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951219624] [2022-11-20 09:28:26,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:26,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:26,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:26,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:26,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:26,379 INFO L87 Difference]: Start difference. First operand 7842 states and 10840 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 09:28:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:27,585 INFO L93 Difference]: Finished difference Result 20819 states and 28784 transitions. [2022-11-20 09:28:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:27,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 238 [2022-11-20 09:28:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:27,697 INFO L225 Difference]: With dead ends: 20819 [2022-11-20 09:28:27,698 INFO L226 Difference]: Without dead ends: 13014 [2022-11-20 09:28:27,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:27,746 INFO L413 NwaCegarLoop]: 4888 mSDtfsCounter, 3930 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3930 SdHoareTripleChecker+Valid, 8954 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:27,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3930 Valid, 8954 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:28:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13014 states. [2022-11-20 09:28:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13014 to 13001. [2022-11-20 09:28:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 8781 states have (on average 1.251451998633413) internal successors, (10989), 8965 states have internal predecessors, (10989), 3485 states have call successors, (3485), 736 states have call predecessors, (3485), 733 states have return successors, (3482), 3416 states have call predecessors, (3482), 3482 states have call successors, (3482) [2022-11-20 09:28:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 17956 transitions. [2022-11-20 09:28:28,742 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 17956 transitions. Word has length 238 [2022-11-20 09:28:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:28,743 INFO L495 AbstractCegarLoop]: Abstraction has 13001 states and 17956 transitions. [2022-11-20 09:28:28,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 09:28:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 17956 transitions. [2022-11-20 09:28:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 09:28:28,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:28,754 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-11-20 09:28:28,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:28,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:28,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2097362772, now seen corresponding path program 1 times [2022-11-20 09:28:28,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:28,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807218377] [2022-11-20 09:28:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:28,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:28,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:28,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:29,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:28:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:31,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:31,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2022-11-20 09:28:31,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:31,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:31,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807218377] [2022-11-20 09:28:31,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807218377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:31,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:31,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541945093] [2022-11-20 09:28:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:31,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:31,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:31,482 INFO L87 Difference]: Start difference. First operand 13001 states and 17956 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 09:28:33,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:33,029 INFO L93 Difference]: Finished difference Result 34034 states and 47048 transitions. [2022-11-20 09:28:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:33,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 259 [2022-11-20 09:28:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:33,196 INFO L225 Difference]: With dead ends: 34034 [2022-11-20 09:28:33,196 INFO L226 Difference]: Without dead ends: 23399 [2022-11-20 09:28:33,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:33,258 INFO L413 NwaCegarLoop]: 7790 mSDtfsCounter, 3965 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 11874 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:33,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 11874 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:28:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23399 states. [2022-11-20 09:28:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23399 to 23397. [2022-11-20 09:28:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23397 states, 15813 states have (on average 1.2521975589704673) internal successors, (19801), 16133 states have internal predecessors, (19801), 6263 states have call successors, (6263), 1322 states have call predecessors, (6263), 1319 states have return successors, (6260), 6154 states have call predecessors, (6260), 6260 states have call successors, (6260) [2022-11-20 09:28:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23397 states to 23397 states and 32324 transitions. [2022-11-20 09:28:34,980 INFO L78 Accepts]: Start accepts. Automaton has 23397 states and 32324 transitions. Word has length 259 [2022-11-20 09:28:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:34,981 INFO L495 AbstractCegarLoop]: Abstraction has 23397 states and 32324 transitions. [2022-11-20 09:28:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 09:28:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 23397 states and 32324 transitions. [2022-11-20 09:28:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 09:28:34,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:34,994 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-11-20 09:28:35,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:35,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:35,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:35,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:35,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2063591018, now seen corresponding path program 1 times [2022-11-20 09:28:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:35,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390187302] [2022-11-20 09:28:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:35,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:35,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:35,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:35,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:28:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:37,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:37,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2022-11-20 09:28:39,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:39,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:39,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390187302] [2022-11-20 09:28:39,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390187302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:39,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:39,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:28:39,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946817331] [2022-11-20 09:28:39,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:39,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:28:39,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:39,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:28:39,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:28:39,095 INFO L87 Difference]: Start difference. First operand 23397 states and 32324 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 09:28:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:40,517 INFO L93 Difference]: Finished difference Result 23397 states and 32324 transitions. [2022-11-20 09:28:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:28:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 259 [2022-11-20 09:28:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:40,641 INFO L225 Difference]: With dead ends: 23397 [2022-11-20 09:28:40,641 INFO L226 Difference]: Without dead ends: 23342 [2022-11-20 09:28:40,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:28:40,663 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4000 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4000 SdHoareTripleChecker+Valid, 8214 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:40,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4000 Valid, 8214 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:28:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23342 states. [2022-11-20 09:28:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23342 to 23342. [2022-11-20 09:28:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 15788 states have (on average 1.2518368381048899) internal successors, (19764), 16096 states have internal predecessors, (19764), 6236 states have call successors, (6236), 1317 states have call predecessors, (6236), 1317 states have return successors, (6236), 6141 states have call predecessors, (6236), 6236 states have call successors, (6236) [2022-11-20 09:28:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 32236 transitions. [2022-11-20 09:28:42,654 INFO L78 Accepts]: Start accepts. Automaton has 23342 states and 32236 transitions. Word has length 259 [2022-11-20 09:28:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:42,655 INFO L495 AbstractCegarLoop]: Abstraction has 23342 states and 32236 transitions. [2022-11-20 09:28:42,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 09:28:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23342 states and 32236 transitions. [2022-11-20 09:28:42,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-20 09:28:42,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:42,691 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 5, 5, 5, 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] [2022-11-20 09:28:42,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:42,915 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1471488529, now seen corresponding path program 1 times [2022-11-20 09:28:42,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:42,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062073786] [2022-11-20 09:28:42,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:42,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:42,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:42,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:28:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:45,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-11-20 09:28:46,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:46,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:46,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062073786] [2022-11-20 09:28:46,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062073786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:46,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:46,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:46,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728577911] [2022-11-20 09:28:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:46,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:46,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:46,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:46,101 INFO L87 Difference]: Start difference. First operand 23342 states and 32236 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:28:48,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:48,326 INFO L93 Difference]: Finished difference Result 53904 states and 74450 transitions. [2022-11-20 09:28:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 288 [2022-11-20 09:28:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:48,528 INFO L225 Difference]: With dead ends: 53904 [2022-11-20 09:28:48,529 INFO L226 Difference]: Without dead ends: 32928 [2022-11-20 09:28:48,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:48,630 INFO L413 NwaCegarLoop]: 7326 mSDtfsCounter, 3340 mSDsluCounter, 4010 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 11336 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:48,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3340 Valid, 11336 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:28:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32928 states. [2022-11-20 09:28:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32928 to 32924. [2022-11-20 09:28:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32924 states, 22282 states have (on average 1.2506956287586393) internal successors, (27868), 22714 states have internal predecessors, (27868), 8768 states have call successors, (8768), 1873 states have call predecessors, (8768), 1873 states have return successors, (8768), 8633 states have call predecessors, (8768), 8768 states have call successors, (8768) [2022-11-20 09:28:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32924 states to 32924 states and 45404 transitions. [2022-11-20 09:28:51,317 INFO L78 Accepts]: Start accepts. Automaton has 32924 states and 45404 transitions. Word has length 288 [2022-11-20 09:28:51,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:51,318 INFO L495 AbstractCegarLoop]: Abstraction has 32924 states and 45404 transitions. [2022-11-20 09:28:51,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:28:51,319 INFO L276 IsEmpty]: Start isEmpty. Operand 32924 states and 45404 transitions. [2022-11-20 09:28:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-20 09:28:51,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:51,364 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 16, 16, 16, 16, 16, 16, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:51,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:51,581 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:51,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,581 INFO L85 PathProgramCache]: Analyzing trace with hash -315138958, now seen corresponding path program 1 times [2022-11-20 09:28:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:51,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230651414] [2022-11-20 09:28:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:51,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:51,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:51,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:28:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:54,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-11-20 09:28:54,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:54,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230651414] [2022-11-20 09:28:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230651414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:54,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:54,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058775102] [2022-11-20 09:28:54,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:54,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:54,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:54,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:54,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:54,198 INFO L87 Difference]: Start difference. First operand 32924 states and 45404 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 09:28:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:57,098 INFO L93 Difference]: Finished difference Result 78633 states and 108472 transitions. [2022-11-20 09:28:57,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 314 [2022-11-20 09:28:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:57,352 INFO L225 Difference]: With dead ends: 78633 [2022-11-20 09:28:57,352 INFO L226 Difference]: Without dead ends: 45700 [2022-11-20 09:28:57,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:57,468 INFO L413 NwaCegarLoop]: 7858 mSDtfsCounter, 3961 mSDsluCounter, 4062 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3961 SdHoareTripleChecker+Valid, 11920 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:57,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3961 Valid, 11920 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:28:57,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45700 states. [2022-11-20 09:29:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45700 to 45698. [2022-11-20 09:29:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45698 states, 30916 states have (on average 1.251196791305473) internal successors, (38682), 31514 states have internal predecessors, (38682), 12182 states have call successors, (12182), 2599 states have call predecessors, (12182), 2599 states have return successors, (12182), 11998 states have call predecessors, (12182), 12182 states have call successors, (12182) [2022-11-20 09:29:00,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45698 states to 45698 states and 63046 transitions. [2022-11-20 09:29:00,720 INFO L78 Accepts]: Start accepts. Automaton has 45698 states and 63046 transitions. Word has length 314 [2022-11-20 09:29:00,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:00,721 INFO L495 AbstractCegarLoop]: Abstraction has 45698 states and 63046 transitions. [2022-11-20 09:29:00,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 09:29:00,721 INFO L276 IsEmpty]: Start isEmpty. Operand 45698 states and 63046 transitions. [2022-11-20 09:29:00,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-20 09:29:00,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:00,778 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 09:29:00,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:01,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:01,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1114932838, now seen corresponding path program 1 times [2022-11-20 09:29:01,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:01,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707600093] [2022-11-20 09:29:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:01,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:01,010 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:01,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:29:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 09:29:03,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 384 proven. 3 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2022-11-20 09:29:04,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-11-20 09:29:05,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707600093] [2022-11-20 09:29:05,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707600093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:05,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:29:05,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-11-20 09:29:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309909927] [2022-11-20 09:29:05,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:05,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 09:29:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 09:29:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 09:29:05,856 INFO L87 Difference]: Start difference. First operand 45698 states and 63046 transitions. Second operand has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-11-20 09:29:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:56,182 INFO L93 Difference]: Finished difference Result 117026 states and 161458 transitions. [2022-11-20 09:29:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:29:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) Word has length 338 [2022-11-20 09:29:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:56,530 INFO L225 Difference]: With dead ends: 117026 [2022-11-20 09:29:56,530 INFO L226 Difference]: Without dead ends: 71295 [2022-11-20 09:29:56,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 09:29:56,679 INFO L413 NwaCegarLoop]: 8337 mSDtfsCounter, 12063 mSDsluCounter, 130767 mSDsCounter, 0 mSdLazyCounter, 11822 mSolverCounterSat, 2259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12379 SdHoareTripleChecker+Valid, 139104 SdHoareTripleChecker+Invalid, 14081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 2259 IncrementalHoareTripleChecker+Valid, 11822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:56,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12379 Valid, 139104 Invalid, 14081 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [2259 Valid, 11822 Invalid, 0 Unknown, 0 Unchecked, 43.5s Time] [2022-11-20 09:29:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71295 states. [2022-11-20 09:30:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71295 to 45742. [2022-11-20 09:30:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45742 states, 30947 states have (on average 1.250977477623033) internal successors, (38714), 31545 states have internal predecessors, (38714), 12184 states have call successors, (12184), 2610 states have call predecessors, (12184), 2610 states have return successors, (12184), 12000 states have call predecessors, (12184), 12184 states have call successors, (12184) [2022-11-20 09:30:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45742 states to 45742 states and 63082 transitions. [2022-11-20 09:30:00,653 INFO L78 Accepts]: Start accepts. Automaton has 45742 states and 63082 transitions. Word has length 338 [2022-11-20 09:30:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:00,654 INFO L495 AbstractCegarLoop]: Abstraction has 45742 states and 63082 transitions. [2022-11-20 09:30:00,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-11-20 09:30:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 45742 states and 63082 transitions. [2022-11-20 09:30:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-20 09:30:00,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:00,693 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 09:30:00,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:00,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:00,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash 572315258, now seen corresponding path program 1 times [2022-11-20 09:30:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:00,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119955761] [2022-11-20 09:30:00,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:00,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:00,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:00,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:00,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d13fe68-a3ad-4da2-aa89-cd822f6c25fb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:30:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:03,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:03,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-11-20 09:30:03,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:03,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119955761] [2022-11-20 09:30:03,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119955761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:03,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:03,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:03,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149257263] [2022-11-20 09:30:03,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:03,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:03,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:03,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:03,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:03,470 INFO L87 Difference]: Start difference. First operand 45742 states and 63082 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-20 09:30:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:07,692 INFO L93 Difference]: Finished difference Result 104245 states and 143786 transitions. [2022-11-20 09:30:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:07,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 346 [2022-11-20 09:30:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:07,900 INFO L225 Difference]: With dead ends: 104245 [2022-11-20 09:30:07,900 INFO L226 Difference]: Without dead ends: 58518 [2022-11-20 09:30:08,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:08,011 INFO L413 NwaCegarLoop]: 8048 mSDtfsCounter, 3959 mSDsluCounter, 4062 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3959 SdHoareTripleChecker+Valid, 12110 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:08,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3959 Valid, 12110 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58518 states.