./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- 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-b5237d8 [2022-11-22 01:11:41,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:11:41,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:11:41,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:11:41,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:11:41,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:11:41,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:11:41,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:11:41,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:11:41,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:11:41,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:11:41,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:11:41,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:11:41,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:11:41,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:11:41,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:11:41,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:11:41,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:11:41,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:11:41,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:11:41,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:11:41,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:11:41,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:11:41,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:11:41,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:11:41,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:11:41,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:11:41,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:11:41,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:11:41,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:11:41,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:11:41,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:11:41,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:11:41,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:11:41,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:11:41,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:11:41,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:11:41,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:11:41,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:11:41,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:11:41,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:11:41,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:11:41,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:11:41,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:11:41,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:11:41,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:11:41,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:11:41,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:11:41,391 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:11:41,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:11:41,391 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:11:41,391 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:11:41,393 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:11:41,393 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:11:41,393 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:11:41,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:11:41,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:11:41,394 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:11:41,394 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:11:41,394 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:11:41,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:11:41,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:11:41,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:11:41,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:11:41,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:11:41,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:11:41,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:11:41,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:11:41,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:11:41,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:11:41,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:11:41,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:41,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:11:41,399 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:11:41,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:11:41,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:11:41,400 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:11:41,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:11:41,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:11:41,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:11:41,401 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-22 01:11:41,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:11:41,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:11:41,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:11:41,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:11:41,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:11:41,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:11:44,800 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:11:45,413 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:11:45,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:11:45,462 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/9e85e8400/d672e11930b647039343d24251216813/FLAG73134ec25 [2022-11-22 01:11:45,487 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/9e85e8400/d672e11930b647039343d24251216813 [2022-11-22 01:11:45,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:11:45,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:11:45,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:45,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:11:45,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:11:45,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:45" (1/1) ... [2022-11-22 01:11:45,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415e71f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:45, skipping insertion in model container [2022-11-22 01:11:45,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:45" (1/1) ... [2022-11-22 01:11:45,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:11:45,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:11:47,726 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-22 01:11:47,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:47,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:11:48,226 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-22 01:11:48,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:48,526 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:11:48,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48 WrapperNode [2022-11-22 01:11:48,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:48,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:48,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:11:48,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:11:48,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,786 INFO L138 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 144, calls inlined = 114, statements flattened = 4258 [2022-11-22 01:11:48,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:48,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:11:48,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:11:48,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:11:48,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:48,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:49,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:49,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:49,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:11:49,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:11:49,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:11:49,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:11:49,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (1/1) ... [2022-11-22 01:11:49,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:49,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:49,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:11:49,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:11:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-22 01:11:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-22 01:11:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-22 01:11:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-22 01:11:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-22 01:11:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-22 01:11:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-22 01:11:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-22 01:11:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 01:11:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-22 01:11:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-22 01:11:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:11:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 01:11:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 01:11:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:11:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-22 01:11:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-22 01:11:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-22 01:11:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-22 01:11:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-22 01:11:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-22 01:11:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-22 01:11:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-22 01:11:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-22 01:11:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-22 01:11:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:11:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:11:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 01:11:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 01:11:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:11:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:11:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:11:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:11:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-22 01:11:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-22 01:11:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-22 01:11:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-22 01:11:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-22 01:11:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-22 01:11:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-22 01:11:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-22 01:11:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:11:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:11:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-22 01:11:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-22 01:11:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-22 01:11:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-22 01:11:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-22 01:11:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-22 01:11:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:11:49,157 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:11:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:11:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:11:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-22 01:11:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-22 01:11:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:11:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:11:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-22 01:11:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-22 01:11:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-22 01:11:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-22 01:11:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-22 01:11:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-22 01:11:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-22 01:11:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-22 01:11:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:11:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:11:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:11:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-22 01:11:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-22 01:11:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:11:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-22 01:11:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-22 01:11:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:11:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:11:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-22 01:11:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-22 01:11:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:11:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:11:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-22 01:11:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-22 01:11:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:11:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:11:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:11:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:11:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:11:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:11:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:11:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:11:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-22 01:11:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-22 01:11:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-22 01:11:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-22 01:11:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:11:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:11:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:11:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:11:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:11:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:11:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-22 01:11:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-22 01:11:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-22 01:11:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-22 01:11:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:11:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:11:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 01:11:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 01:11:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:11:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:11:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:11:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-22 01:11:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-22 01:11:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:11:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:11:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-22 01:11:49,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-22 01:11:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:11:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-22 01:11:49,179 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-22 01:11:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:11:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:11:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-22 01:11:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-22 01:11:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:11:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:11:49,185 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:11:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-22 01:11:49,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-22 01:11:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-22 01:11:49,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-22 01:11:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-22 01:11:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-22 01:11:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-22 01:11:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-22 01:11:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-22 01:11:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-22 01:11:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-22 01:11:49,187 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-22 01:11:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:11:49,187 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:11:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-22 01:11:49,187 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-22 01:11:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-22 01:11:49,187 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-22 01:11:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:11:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:11:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:11:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-22 01:11:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-22 01:11:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-22 01:11:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-22 01:11:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-22 01:11:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-22 01:11:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-22 01:11:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-22 01:11:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:11:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:11:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:11:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 01:11:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 01:11:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:11:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:11:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:11:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:11:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:11:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-22 01:11:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-22 01:11:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:11:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:11:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 01:11:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 01:11:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:11:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:11:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:11:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:11:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:11:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:11:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-22 01:11:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-22 01:11:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 01:11:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 01:11:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-22 01:11:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-22 01:11:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:11:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:11:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-22 01:11:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-22 01:11:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:11:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:11:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-22 01:11:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-22 01:11:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:11:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:11:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-22 01:11:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-22 01:11:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-22 01:11:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-22 01:11:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-22 01:11:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-22 01:11:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:11:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-22 01:11:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-22 01:11:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:11:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:11:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:11:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:11:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 01:11:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 01:11:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:11:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:11:49,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:11:49,919 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:11:50,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-22 01:11:50,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-22 01:11:51,888 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:11:51,894 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:11:51,897 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:11:52,479 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2022-11-22 01:11:52,480 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2022-11-22 01:11:52,480 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2022-11-22 01:11:52,480 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2022-11-22 01:11:52,480 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume !false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume !false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume false; [2022-11-22 01:11:52,481 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2022-11-22 01:11:52,482 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2022-11-22 01:11:52,482 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2022-11-22 01:11:52,482 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2022-11-22 01:11:52,482 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2022-11-22 01:11:52,482 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-11-22 01:11:52,483 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume !false; [2022-11-22 01:11:52,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##143: assume false; [2022-11-22 01:11:52,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2022-11-22 01:11:52,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2022-11-22 01:11:52,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-11-22 01:11:52,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-11-22 01:11:52,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-11-22 01:11:52,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-11-22 01:11:52,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-11-22 01:11:52,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-22 01:11:52,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-22 01:11:52,706 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:11:52,713 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:11:53,504 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6446: SUMMARY for call ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset := get_current(); srcloc: null [2022-11-22 01:11:53,504 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6446-1: ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset := ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;havoc ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;ppp_read_~__ptr~0#1.base, ppp_read_~__ptr~0#1.offset := ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6528-1: ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset := ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;havoc ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;ppp_read_~__ptr___3~0#1.base, ppp_read_~__ptr___3~0#1.offset := ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6528: SUMMARY for call ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset := get_current(); srcloc: null [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-22 01:11:53,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-22 01:11:53,506 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume !false; [2022-11-22 01:11:53,506 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume false; [2022-11-22 01:11:53,594 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:11:54,745 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:11:54,745 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-22 01:11:54,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:54 BoogieIcfgContainer [2022-11-22 01:11:54,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:11:54,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:11:54,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:11:54,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:11:54,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:11:45" (1/3) ... [2022-11-22 01:11:54,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b7c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:54, skipping insertion in model container [2022-11-22 01:11:54,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:48" (2/3) ... [2022-11-22 01:11:54,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b7c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:54, skipping insertion in model container [2022-11-22 01:11:54,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:54" (3/3) ... [2022-11-22 01:11:54,760 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:11:54,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:11:54,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:11:54,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:11:54,865 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=FINITE_AUTOMATA, 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;@7163a9bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:11:54,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:11:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 1129 states, 702 states have (on average 1.378917378917379) internal successors, (968), 737 states have internal predecessors, (968), 331 states have call successors, (331), 96 states have call predecessors, (331), 96 states have return successors, (331), 323 states have call predecessors, (331), 331 states have call successors, (331) [2022-11-22 01:11:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:11:54,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:54,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:54,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:54,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1687210942, now seen corresponding path program 1 times [2022-11-22 01:11:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:54,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518151968] [2022-11-22 01:11:54,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:54,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:55,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:55,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518151968] [2022-11-22 01:11:55,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518151968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:55,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:55,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:11:55,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115023637] [2022-11-22 01:11:55,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:55,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:11:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:11:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:11:55,474 INFO L87 Difference]: Start difference. First operand has 1129 states, 702 states have (on average 1.378917378917379) internal successors, (968), 737 states have internal predecessors, (968), 331 states have call successors, (331), 96 states have call predecessors, (331), 96 states have return successors, (331), 323 states have call predecessors, (331), 331 states have call successors, (331) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:11:57,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:00,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:12:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:01,556 INFO L93 Difference]: Finished difference Result 3306 states and 4828 transitions. [2022-11-22 01:12:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:12:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:01,587 INFO L225 Difference]: With dead ends: 3306 [2022-11-22 01:12:01,587 INFO L226 Difference]: Without dead ends: 2174 [2022-11-22 01:12:01,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:01,604 INFO L413 NwaCegarLoop]: 2111 mSDtfsCounter, 1541 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:01,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 3511 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 01:12:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-11-22 01:12:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2158. [2022-11-22 01:12:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2158 states, 1340 states have (on average 1.3656716417910448) internal successors, (1830), 1408 states have internal predecessors, (1830), 632 states have call successors, (632), 186 states have call predecessors, (632), 185 states have return successors, (633), 613 states have call predecessors, (633), 630 states have call successors, (633) [2022-11-22 01:12:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2158 states to 2158 states and 3095 transitions. [2022-11-22 01:12:01,870 INFO L78 Accepts]: Start accepts. Automaton has 2158 states and 3095 transitions. Word has length 9 [2022-11-22 01:12:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:01,871 INFO L495 AbstractCegarLoop]: Abstraction has 2158 states and 3095 transitions. [2022-11-22 01:12:01,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:12:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2158 states and 3095 transitions. [2022-11-22 01:12:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-22 01:12:01,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:01,890 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:12:01,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:12:01,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash -956393947, now seen corresponding path program 1 times [2022-11-22 01:12:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:01,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660721588] [2022-11-22 01:12:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:12:02,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:02,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660721588] [2022-11-22 01:12:02,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660721588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:02,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:02,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:02,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650581646] [2022-11-22 01:12:02,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:02,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:02,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:02,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:02,237 INFO L87 Difference]: Start difference. First operand 2158 states and 3095 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-22 01:12:04,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:05,766 INFO L93 Difference]: Finished difference Result 4515 states and 6520 transitions. [2022-11-22 01:12:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:05,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2022-11-22 01:12:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:05,783 INFO L225 Difference]: With dead ends: 4515 [2022-11-22 01:12:05,783 INFO L226 Difference]: Without dead ends: 2375 [2022-11-22 01:12:05,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:05,793 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 118 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:05,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2826 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-22 01:12:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-11-22 01:12:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2359. [2022-11-22 01:12:05,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 1487 states have (on average 1.3732347007397445) internal successors, (2042), 1557 states have internal predecessors, (2042), 686 states have call successors, (686), 186 states have call predecessors, (686), 185 states have return successors, (688), 667 states have call predecessors, (688), 684 states have call successors, (688) [2022-11-22 01:12:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3416 transitions. [2022-11-22 01:12:05,910 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3416 transitions. Word has length 60 [2022-11-22 01:12:05,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:05,910 INFO L495 AbstractCegarLoop]: Abstraction has 2359 states and 3416 transitions. [2022-11-22 01:12:05,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-22 01:12:05,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3416 transitions. [2022-11-22 01:12:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:12:05,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:05,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:12:05,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:12:05,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1135784990, now seen corresponding path program 1 times [2022-11-22 01:12:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:05,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278262653] [2022-11-22 01:12:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:54,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:12:54,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:54,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278262653] [2022-11-22 01:12:54,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278262653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:54,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:54,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:54,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942234954] [2022-11-22 01:12:54,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:54,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:54,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:54,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:54,558 INFO L87 Difference]: Start difference. First operand 2359 states and 3416 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:12:56,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:58,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:58,766 INFO L93 Difference]: Finished difference Result 4734 states and 6878 transitions. [2022-11-22 01:12:58,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:58,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-22 01:12:58,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:58,787 INFO L225 Difference]: With dead ends: 4734 [2022-11-22 01:12:58,787 INFO L226 Difference]: Without dead ends: 3507 [2022-11-22 01:12:58,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:58,796 INFO L413 NwaCegarLoop]: 1723 mSDtfsCounter, 1506 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:58,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3118 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 01:12:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2022-11-22 01:12:58,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3491. [2022-11-22 01:12:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 2202 states have (on average 1.3737511353315168) internal successors, (3025), 2305 states have internal predecessors, (3025), 1015 states have call successors, (1015), 274 states have call predecessors, (1015), 273 states have return successors, (1021), 988 states have call predecessors, (1021), 1013 states have call successors, (1021) [2022-11-22 01:12:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5061 transitions. [2022-11-22 01:12:59,013 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5061 transitions. Word has length 58 [2022-11-22 01:12:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:59,014 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 5061 transitions. [2022-11-22 01:12:59,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:12:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5061 transitions. [2022-11-22 01:12:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:12:59,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:59,022 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:59,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:12:59,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2047285096, now seen corresponding path program 1 times [2022-11-22 01:12:59,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:59,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719278190] [2022-11-22 01:12:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:59,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:12:59,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:59,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719278190] [2022-11-22 01:12:59,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719278190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:59,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:59,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:12:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102761064] [2022-11-22 01:12:59,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:59,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:12:59,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:59,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:12:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:12:59,636 INFO L87 Difference]: Start difference. First operand 3491 states and 5061 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-22 01:13:01,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:04,320 INFO L93 Difference]: Finished difference Result 6967 states and 10102 transitions. [2022-11-22 01:13:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:13:04,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73 [2022-11-22 01:13:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:04,386 INFO L225 Difference]: With dead ends: 6967 [2022-11-22 01:13:04,386 INFO L226 Difference]: Without dead ends: 3491 [2022-11-22 01:13:04,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:13:04,401 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 3 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:04,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5650 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:13:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3491 states. [2022-11-22 01:13:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3491 to 3491. [2022-11-22 01:13:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 2202 states have (on average 1.3728428701180744) internal successors, (3023), 2303 states have internal predecessors, (3023), 1015 states have call successors, (1015), 274 states have call predecessors, (1015), 273 states have return successors, (1021), 988 states have call predecessors, (1021), 1013 states have call successors, (1021) [2022-11-22 01:13:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5059 transitions. [2022-11-22 01:13:04,553 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5059 transitions. Word has length 73 [2022-11-22 01:13:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:04,554 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 5059 transitions. [2022-11-22 01:13:04,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-22 01:13:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5059 transitions. [2022-11-22 01:13:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-22 01:13:04,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:04,560 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:13:04,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:13:04,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:04,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1033325568, now seen corresponding path program 1 times [2022-11-22 01:13:04,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845971246] [2022-11-22 01:13:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:04,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:05,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:13:05,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:05,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845971246] [2022-11-22 01:13:05,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845971246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:05,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:05,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:13:05,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257677587] [2022-11-22 01:13:05,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:05,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:13:05,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:13:05,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:13:05,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:13:05,530 INFO L87 Difference]: Start difference. First operand 3491 states and 5059 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:13:07,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:09,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:11,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:13,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:16,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:16,769 INFO L93 Difference]: Finished difference Result 6990 states and 10194 transitions. [2022-11-22 01:13:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:13:16,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2022-11-22 01:13:16,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:16,790 INFO L225 Difference]: With dead ends: 6990 [2022-11-22 01:13:16,791 INFO L226 Difference]: Without dead ends: 3518 [2022-11-22 01:13:16,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:13:16,809 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 7 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:16,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5384 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1068 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-22 01:13:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2022-11-22 01:13:16,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3503. [2022-11-22 01:13:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3503 states, 2211 states have (on average 1.3726820443238354) internal successors, (3035), 2312 states have internal predecessors, (3035), 1018 states have call successors, (1018), 274 states have call predecessors, (1018), 273 states have return successors, (1024), 991 states have call predecessors, (1024), 1016 states have call successors, (1024) [2022-11-22 01:13:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 5077 transitions. [2022-11-22 01:13:17,030 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 5077 transitions. Word has length 86 [2022-11-22 01:13:17,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:17,031 INFO L495 AbstractCegarLoop]: Abstraction has 3503 states and 5077 transitions. [2022-11-22 01:13:17,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:13:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 5077 transitions. [2022-11-22 01:13:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 01:13:17,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:17,038 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:13:17,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:13:17,039 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:17,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:17,039 INFO L85 PathProgramCache]: Analyzing trace with hash -488877976, now seen corresponding path program 1 times [2022-11-22 01:13:17,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:17,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220086018] [2022-11-22 01:13:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:17,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:13:17,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:13:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:13:18,196 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:13:18,196 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:13:18,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:13:18,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:13:18,202 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 01:13:18,206 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:13:18,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:13:18 BoogieIcfgContainer [2022-11-22 01:13:18,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:13:18,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:13:18,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:13:18,374 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:13:18,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:54" (3/4) ... [2022-11-22 01:13:18,377 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:13:18,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:13:18,378 INFO L158 Benchmark]: Toolchain (without parser) took 92884.59ms. Allocated memory was 165.7MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 107.5MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 845.0MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,378 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 84.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:13:18,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3031.67ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 107.5MB in the beginning and 97.9MB in the end (delta: 9.6MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 258.75ms. Allocated memory is still 203.4MB. Free memory was 97.9MB in the beginning and 73.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,379 INFO L158 Benchmark]: Boogie Preprocessor took 286.88ms. Allocated memory is still 203.4MB. Free memory was 73.8MB in the beginning and 107.4MB in the end (delta: -33.6MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,380 INFO L158 Benchmark]: RCFGBuilder took 5675.77ms. Allocated memory was 203.4MB in the beginning and 450.9MB in the end (delta: 247.5MB). Free memory was 107.4MB in the beginning and 328.3MB in the end (delta: -220.9MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,380 INFO L158 Benchmark]: TraceAbstraction took 83619.26ms. Allocated memory was 450.9MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 328.3MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 838.7MB. Max. memory is 16.1GB. [2022-11-22 01:13:18,381 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 2.3GB. Free memory is still 1.4GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:13:18,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 84.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3031.67ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 107.5MB in the beginning and 97.9MB in the end (delta: 9.6MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 258.75ms. Allocated memory is still 203.4MB. Free memory was 97.9MB in the beginning and 73.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 286.88ms. Allocated memory is still 203.4MB. Free memory was 73.8MB in the beginning and 107.4MB in the end (delta: -33.6MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * RCFGBuilder took 5675.77ms. Allocated memory was 203.4MB in the beginning and 450.9MB in the end (delta: 247.5MB). Free memory was 107.4MB in the beginning and 328.3MB in the end (delta: -220.9MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. * TraceAbstraction took 83619.26ms. Allocated memory was 450.9MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 328.3MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 838.7MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 2.3GB. Free memory is still 1.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6167, overapproximation of bitwiseOr at line 7938, overapproximation of bitwiseAnd at line 7939, overapproximation of bitwiseComplement at line 7045. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551869:18446744073709551877}, arg0={18446744073709551869:18446744073709551877}, arg0={18446744073709551869:18446744073709551877}, arg1={20:0}, arg1={20:0}, arg2={91:0}, arg2={91:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp VAL [__key={91:0}, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}] [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={91:0}, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, IS_ERR((void const *)ppp_class)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=-2] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, pf->kind=-4294967295, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, pf->kind=-4294967295, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6931] FCALL mutex_lock_nested(& ppp_mutex, 0U) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7014] FCALL might_fault() VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551877}, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7037] val = (int )__val_gu___1 VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7038] COND FALSE !(__ret_gu___1 != 0) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7043] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7043] RET spin_lock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7044] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7044] RET spin_lock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, cflags=4294967289, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7047] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7047] RET spin_unlock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, cflags=4294967289, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7048] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7048] RET spin_unlock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, cflags=4294967289, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7050] COND TRUE (cflags & 64) != 0 VAL [\old(arg)=18446744073709551612, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551877}, __val_gu___1=4294967291, arg=18446744073709551612, argp={0:-4}, cflags=4294967289, channel_count={62:0}, cmd=1074033753, code={95:0}, code___0={89:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551890:-3}, file={18446744073709551890:-3}, idle={93:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={92:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-4}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-5] [L7052] CALL ppp_ccp_closed(ppp) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-18}, xstate={18446744073709551544:73}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-18}, xstate={18446744073709551544:73}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-18}, xstate={18446744073709551544:73}] [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-18}, xcomp->comp_free={-1:12}, xstate={18446744073709551544:73}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9974] RET (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-18}, xcomp->comp_free={-1:12}, xstate={18446744073709551544:73}] [L9975] EXPR xcomp->owner [L9975] CALL ldv_module_put_5(xcomp->owner) [L10926] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={78:-77}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={78:-77}, module={78:-77}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={78:-77}, module={78:-77}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 97 procedures, 1129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.4s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 3216 SdHoareTripleChecker+Valid, 28.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3175 mSDsluCounter, 20489 SdHoareTripleChecker+Invalid, 27.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12384 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3105 IncrementalHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 8105 mSDtfsCounter, 3105 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3503occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 63 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 25.7s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 34/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:13:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- 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-b5237d8 [2022-11-22 01:13:20,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:13:20,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:13:20,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:13:20,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:13:20,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:13:20,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:13:20,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:13:20,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:13:20,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:13:20,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:13:20,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:13:20,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:13:20,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:13:20,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:13:20,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:13:20,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:13:20,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:13:20,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:13:20,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:13:20,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:13:20,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:13:20,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:13:20,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:13:20,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:13:20,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:13:20,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:13:20,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:13:20,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:13:20,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:13:20,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:13:20,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:13:20,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:13:20,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:13:20,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:13:21,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:13:21,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:13:21,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:13:21,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:13:21,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:13:21,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:13:21,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:13:21,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:13:21,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:13:21,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:13:21,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:13:21,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:13:21,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:13:21,037 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:13:21,038 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:13:21,038 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:13:21,038 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:13:21,039 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:13:21,039 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:13:21,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:13:21,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:13:21,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:13:21,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:13:21,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:13:21,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:13:21,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:13:21,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:13:21,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:13:21,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:13:21,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:13:21,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:13:21,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:13:21,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:13:21,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:13:21,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:13:21,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:13:21,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:13:21,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:13:21,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:13:21,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:13:21,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:13:21,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:13:21,047 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-22 01:13:21,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:13:21,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:13:21,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:13:21,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:13:21,464 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:13:21,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:13:24,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:13:25,218 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:13:25,218 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:13:25,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/96953cda8/a7ca306b00bd4007a16fe5770049c65f/FLAG8916be861 [2022-11-22 01:13:25,307 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/data/96953cda8/a7ca306b00bd4007a16fe5770049c65f [2022-11-22 01:13:25,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:13:25,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:13:25,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:13:25,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:13:25,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:13:25,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:25" (1/1) ... [2022-11-22 01:13:25,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181b811c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:25, skipping insertion in model container [2022-11-22 01:13:25,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:25" (1/1) ... [2022-11-22 01:13:25,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:13:25,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:13:27,552 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-22 01:13:27,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:13:27,680 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:13:27,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:13:28,158 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-22 01:13:28,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:13:28,217 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:13:28,629 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_91df53f3-a4fb-45c9-90cf-9e960c59677c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-22 01:13:28,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:13:28,983 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:13:28,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28 WrapperNode [2022-11-22 01:13:28,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:13:28,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:13:28,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:13:28,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:13:28,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,200 INFO L138 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 147, calls inlined = 117, statements flattened = 4122 [2022-11-22 01:13:29,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:13:29,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:13:29,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:13:29,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:13:29,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:13:29,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:13:29,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:13:29,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:13:29,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:29,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:13:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:13:29,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:13:29,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:13:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-22 01:13:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-22 01:13:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-22 01:13:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 01:13:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-22 01:13:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-22 01:13:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-22 01:13:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-22 01:13:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 01:13:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-22 01:13:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-22 01:13:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:13:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:13:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 01:13:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 01:13:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-22 01:13:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:13:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-22 01:13:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-22 01:13:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-22 01:13:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-22 01:13:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-22 01:13:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-22 01:13:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-22 01:13:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-22 01:13:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-22 01:13:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-22 01:13:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:13:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:13:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 01:13:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 01:13:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:13:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:13:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:13:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:13:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-22 01:13:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-22 01:13:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-22 01:13:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-22 01:13:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-22 01:13:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-22 01:13:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-22 01:13:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-22 01:13:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-22 01:13:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-22 01:13:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:13:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:13:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-22 01:13:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-22 01:13:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-22 01:13:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-22 01:13:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-22 01:13:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-22 01:13:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:13:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:13:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:13:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:13:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-22 01:13:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-22 01:13:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:13:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:13:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-22 01:13:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-22 01:13:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-22 01:13:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-22 01:13:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-22 01:13:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-22 01:13:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-22 01:13:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-22 01:13:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:13:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:13:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:13:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-22 01:13:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-22 01:13:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:13:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-22 01:13:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-22 01:13:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:13:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:13:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 01:13:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-22 01:13:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-22 01:13:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-22 01:13:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-22 01:13:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:13:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:13:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:13:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-22 01:13:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-22 01:13:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:13:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:13:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:13:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:13:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:13:29,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:13:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-22 01:13:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:13:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:13:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:13:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:13:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-22 01:13:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-22 01:13:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-22 01:13:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-22 01:13:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:13:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:13:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:13:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:13:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:13:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:13:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-22 01:13:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-22 01:13:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-22 01:13:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-22 01:13:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:13:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:13:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 01:13:29,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 01:13:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:13:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:13:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-22 01:13:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-22 01:13:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:13:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:13:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-22 01:13:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-22 01:13:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-22 01:13:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-22 01:13:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:13:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:13:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-22 01:13:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-22 01:13:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:13:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:13:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-22 01:13:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-22 01:13:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-22 01:13:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-22 01:13:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-22 01:13:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-22 01:13:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-22 01:13:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-22 01:13:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-22 01:13:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-22 01:13:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-22 01:13:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-22 01:13:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:13:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:13:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-22 01:13:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-22 01:13:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-22 01:13:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-22 01:13:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:13:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:13:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-22 01:13:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-22 01:13:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-22 01:13:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-22 01:13:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-22 01:13:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-22 01:13:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-22 01:13:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-22 01:13:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-22 01:13:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-22 01:13:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-22 01:13:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-22 01:13:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-22 01:13:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-22 01:13:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:13:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:13:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:13:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 01:13:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 01:13:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:13:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:13:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:13:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:13:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:13:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-22 01:13:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-22 01:13:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:13:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:13:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-22 01:13:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 01:13:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 01:13:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:13:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:13:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:13:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:13:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:13:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:13:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-22 01:13:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-22 01:13:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 01:13:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 01:13:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-22 01:13:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-22 01:13:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:13:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:13:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-22 01:13:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-22 01:13:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:13:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:13:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-22 01:13:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-22 01:13:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-22 01:13:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-22 01:13:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-22 01:13:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-22 01:13:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-22 01:13:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:13:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:13:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:13:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:13:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 01:13:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 01:13:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:13:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:13:30,405 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:13:30,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:13:34,115 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-22 01:13:34,115 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-22 01:13:44,477 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:13:44,481 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:13:44,487 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:13:44,489 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:13:44,500 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:13:56,419 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6446: SUMMARY for call ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset := get_current(); srcloc: null [2022-11-22 01:13:56,419 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6446-1: ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset := ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;havoc ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;ppp_read_~__ptr~0#1.base, ppp_read_~__ptr~0#1.offset := ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset; [2022-11-22 01:13:56,419 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume !false; [2022-11-22 01:13:56,419 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume false; [2022-11-22 01:13:56,420 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6528-1: ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset := ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;havoc ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;ppp_read_~__ptr___3~0#1.base, ppp_read_~__ptr___3~0#1.offset := ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset; [2022-11-22 01:13:56,420 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6528: SUMMARY for call ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset := get_current(); srcloc: null [2022-11-22 01:13:56,420 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume !false; [2022-11-22 01:13:56,420 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##260: assume false; [2022-11-22 01:13:56,420 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2022-11-22 01:13:56,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2022-11-22 01:13:56,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-22 01:13:56,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-22 01:13:56,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-11-22 01:13:56,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume !false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##205: assume false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##317: assume false; [2022-11-22 01:13:56,422 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume !false; [2022-11-22 01:13:56,423 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume !false; [2022-11-22 01:13:56,423 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume false; [2022-11-22 01:13:56,423 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume !false; [2022-11-22 01:13:56,423 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume false; [2022-11-22 01:13:56,423 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-22 01:13:56,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-22 01:13:56,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-22 01:13:56,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-22 01:13:56,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-11-22 01:13:56,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-11-22 01:13:56,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false; [2022-11-22 01:13:56,426 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-11-22 01:13:56,427 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##367: assume !false; [2022-11-22 01:13:56,427 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume false; [2022-11-22 01:13:56,549 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:13:56,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:13:56,579 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-22 01:13:56,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:13:56 BoogieIcfgContainer [2022-11-22 01:13:56,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:13:56,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:13:56,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:13:56,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:13:56,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:13:25" (1/3) ... [2022-11-22 01:13:56,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d25506c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:13:56, skipping insertion in model container [2022-11-22 01:13:56,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28" (2/3) ... [2022-11-22 01:13:56,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d25506c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:13:56, skipping insertion in model container [2022-11-22 01:13:56,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:13:56" (3/3) ... [2022-11-22 01:13:56,596 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-22 01:13:56,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:13:56,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:13:56,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:13:56,732 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=FINITE_AUTOMATA, 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;@1a4f0a61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:13:56,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:13:56,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 1432 states, 1013 states have (on average 1.3534057255676208) internal successors, (1371), 1048 states have internal predecessors, (1371), 326 states have call successors, (326), 93 states have call predecessors, (326), 93 states have return successors, (326), 318 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-22 01:13:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:13:56,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:56,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:13:56,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:56,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2078505288, now seen corresponding path program 1 times [2022-11-22 01:13:56,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:13:56,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130013093] [2022-11-22 01:13:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:56,782 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 [2022-11-22 01:13:56,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:13:56,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:13:56,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:13:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:57,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:13:57,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:13:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:13:57,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:13:57,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:13:57,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130013093] [2022-11-22 01:13:57,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130013093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:57,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:57,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:13:57,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656822224] [2022-11-22 01:13:57,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:57,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:13:57,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:13:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:13:57,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:13:57,924 INFO L87 Difference]: Start difference. First operand has 1432 states, 1013 states have (on average 1.3534057255676208) internal successors, (1371), 1048 states have internal predecessors, (1371), 326 states have call successors, (326), 93 states have call predecessors, (326), 93 states have return successors, (326), 318 states have call predecessors, (326), 326 states have call successors, (326) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:13:58,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:58,463 INFO L93 Difference]: Finished difference Result 4250 states and 6135 transitions. [2022-11-22 01:13:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:13:58,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 01:13:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:58,506 INFO L225 Difference]: With dead ends: 4250 [2022-11-22 01:13:58,506 INFO L226 Difference]: Without dead ends: 2804 [2022-11-22 01:13:58,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:13:58,527 INFO L413 NwaCegarLoop]: 2349 mSDtfsCounter, 1978 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 4305 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:58,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 4305 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:13:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-11-22 01:13:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2801. [2022-11-22 01:13:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 1975 states have (on average 1.3291139240506329) internal successors, (2625), 2042 states have internal predecessors, (2625), 641 states have call successors, (641), 185 states have call predecessors, (641), 184 states have return successors, (642), 623 states have call predecessors, (642), 639 states have call successors, (642) [2022-11-22 01:13:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3908 transitions. [2022-11-22 01:13:58,767 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3908 transitions. Word has length 12 [2022-11-22 01:13:58,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:58,768 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3908 transitions. [2022-11-22 01:13:58,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:13:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3908 transitions. [2022-11-22 01:13:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:13:58,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:58,779 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:13:58,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:13:58,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:13:58,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:58,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:58,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1790442611, now seen corresponding path program 1 times [2022-11-22 01:13:58,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:13:58,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135567851] [2022-11-22 01:13:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:58,999 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 [2022-11-22 01:13:58,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:13:59,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:13:59,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:00,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:14:00,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:14:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:14:00,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:14:00,387 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:14:00,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135567851] [2022-11-22 01:14:00,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135567851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:00,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:00,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:14:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893389819] [2022-11-22 01:14:00,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:00,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:14:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:14:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:14:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:14:00,391 INFO L87 Difference]: Start difference. First operand 2801 states and 3908 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-22 01:14:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:14:00,699 INFO L93 Difference]: Finished difference Result 5578 states and 7787 transitions. [2022-11-22 01:14:00,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:14:00,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 74 [2022-11-22 01:14:00,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:14:00,716 INFO L225 Difference]: With dead ends: 5578 [2022-11-22 01:14:00,716 INFO L226 Difference]: Without dead ends: 2801 [2022-11-22 01:14:00,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:14:00,729 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 3 mSDsluCounter, 5931 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7912 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:14:00,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7912 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:14:00,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-22 01:14:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2022-11-22 01:14:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 1975 states have (on average 1.3281012658227849) internal successors, (2623), 2040 states have internal predecessors, (2623), 641 states have call successors, (641), 185 states have call predecessors, (641), 184 states have return successors, (642), 623 states have call predecessors, (642), 639 states have call successors, (642) [2022-11-22 01:14:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3906 transitions. [2022-11-22 01:14:00,882 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3906 transitions. Word has length 74 [2022-11-22 01:14:00,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:14:00,883 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3906 transitions. [2022-11-22 01:14:00,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-22 01:14:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3906 transitions. [2022-11-22 01:14:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 01:14:00,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:14:00,954 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:14:00,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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)] Ended with exit code 0 [2022-11-22 01:14:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:01,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:14:01,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:14:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1751657911, now seen corresponding path program 1 times [2022-11-22 01:14:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:14:01,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268802229] [2022-11-22 01:14:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:14:01,157 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 [2022-11-22 01:14:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:14:01,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:14:01,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:02,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:14:02,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:14:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:14:02,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:14:02,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:14:02,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268802229] [2022-11-22 01:14:02,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268802229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:02,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:02,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:14:02,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793092855] [2022-11-22 01:14:02,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:02,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:14:02,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:14:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:14:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:14:02,536 INFO L87 Difference]: Start difference. First operand 2801 states and 3906 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:14:02,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:14:02,818 INFO L93 Difference]: Finished difference Result 6586 states and 9372 transitions. [2022-11-22 01:14:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:14:02,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2022-11-22 01:14:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:14:02,840 INFO L225 Difference]: With dead ends: 6586 [2022-11-22 01:14:02,841 INFO L226 Difference]: Without dead ends: 3812 [2022-11-22 01:14:02,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:14:02,877 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 502 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:14:02,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 4331 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:14:02,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-11-22 01:14:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3796. [2022-11-22 01:14:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 2682 states have (on average 1.3434004474272931) internal successors, (3603), 2761 states have internal predecessors, (3603), 929 states have call successors, (929), 185 states have call predecessors, (929), 184 states have return successors, (933), 909 states have call predecessors, (933), 927 states have call successors, (933) [2022-11-22 01:14:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5465 transitions. [2022-11-22 01:14:03,065 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5465 transitions. Word has length 89 [2022-11-22 01:14:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:14:03,065 INFO L495 AbstractCegarLoop]: Abstraction has 3796 states and 5465 transitions. [2022-11-22 01:14:03,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:14:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5465 transitions. [2022-11-22 01:14:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 01:14:03,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:14:03,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:14:03,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:03,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:03,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:14:03,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:14:03,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1606886577, now seen corresponding path program 1 times [2022-11-22 01:14:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:14:03,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356955859] [2022-11-22 01:14:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:14:03,290 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 [2022-11-22 01:14:03,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:14:03,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:14:03,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:14:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:04,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:14:04,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:14:04,763 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:14:04,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 20 [2022-11-22 01:14:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:14:07,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:14:07,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:14:07,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356955859] [2022-11-22 01:14:07,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356955859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:07,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:07,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:14:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572535567] [2022-11-22 01:14:07,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:07,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:14:07,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:14:07,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:14:07,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2022-11-22 01:14:07,672 INFO L87 Difference]: Start difference. First operand 3796 states and 5465 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:14:10,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:12,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:14,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:16,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:18,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:20,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:22,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:23,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:25,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:27,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:29,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 01:14:33,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:35,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:37,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:39,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:44,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:46,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:49,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:51,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:56,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:58,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:02,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:06,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:08,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:08,921 INFO L93 Difference]: Finished difference Result 7586 states and 10964 transitions. [2022-11-22 01:15:08,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:15:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2022-11-22 01:15:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:08,946 INFO L225 Difference]: With dead ends: 7586 [2022-11-22 01:15:08,946 INFO L226 Difference]: Without dead ends: 3818 [2022-11-22 01:15:08,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2022-11-22 01:15:08,960 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 9 mSDsluCounter, 5503 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7485 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:08,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7485 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 21 Unknown, 0 Unchecked, 60.9s Time] [2022-11-22 01:15:08,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-11-22 01:15:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3804. [2022-11-22 01:15:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 2688 states have (on average 1.3433779761904763) internal successors, (3611), 2767 states have internal predecessors, (3611), 931 states have call successors, (931), 185 states have call predecessors, (931), 184 states have return successors, (935), 911 states have call predecessors, (935), 929 states have call successors, (935) [2022-11-22 01:15:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5477 transitions. [2022-11-22 01:15:09,162 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5477 transitions. Word has length 106 [2022-11-22 01:15:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:09,163 INFO L495 AbstractCegarLoop]: Abstraction has 3804 states and 5477 transitions. [2022-11-22 01:15:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:15:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5477 transitions. [2022-11-22 01:15:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-22 01:15:09,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:09,170 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:15:09,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:09,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:09,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:15:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:09,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1923503077, now seen corresponding path program 1 times [2022-11-22 01:15:09,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:15:09,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180976720] [2022-11-22 01:15:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:09,389 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 [2022-11-22 01:15:09,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:15:09,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:15:09,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:10,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:15:10,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:15:10,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:15:10,676 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:15:10,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180976720] [2022-11-22 01:15:10,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180976720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:10,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:10,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:15:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926319888] [2022-11-22 01:15:10,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:10,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:10,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:15:10,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:10,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:10,679 INFO L87 Difference]: Start difference. First operand 3804 states and 5477 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:15:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:10,843 INFO L93 Difference]: Finished difference Result 7586 states and 10956 transitions. [2022-11-22 01:15:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:10,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-11-22 01:15:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:10,870 INFO L225 Difference]: With dead ends: 7586 [2022-11-22 01:15:10,871 INFO L226 Difference]: Without dead ends: 3810 [2022-11-22 01:15:10,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:10,890 INFO L413 NwaCegarLoop]: 1979 mSDtfsCounter, 2 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:10,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3954 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-11-22 01:15:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3806. [2022-11-22 01:15:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2690 states have (on average 1.3431226765799256) internal successors, (3613), 2769 states have internal predecessors, (3613), 931 states have call successors, (931), 185 states have call predecessors, (931), 184 states have return successors, (935), 911 states have call predecessors, (935), 929 states have call successors, (935) [2022-11-22 01:15:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5479 transitions. [2022-11-22 01:15:11,177 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5479 transitions. Word has length 108 [2022-11-22 01:15:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:11,178 INFO L495 AbstractCegarLoop]: Abstraction has 3806 states and 5479 transitions. [2022-11-22 01:15:11,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:15:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5479 transitions. [2022-11-22 01:15:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:15:11,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:11,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:15:11,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:11,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:11,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:15:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash -329013054, now seen corresponding path program 1 times [2022-11-22 01:15:11,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:15:11,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454277535] [2022-11-22 01:15:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:11,411 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 [2022-11-22 01:15:11,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:15:11,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:15:11,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:15:28,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:15:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:15:54,488 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 01:15:54,488 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:15:54,489 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:15:54,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:54,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:15:54,717 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 01:15:54,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:15:54,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:15:54 BoogieIcfgContainer [2022-11-22 01:15:54,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:15:54,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:15:54,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:15:54,936 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:15:54,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:13:56" (3/4) ... [2022-11-22 01:15:54,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:15:54,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:15:54,941 INFO L158 Benchmark]: Toolchain (without parser) took 149627.65ms. Allocated memory was 75.5MB in the beginning and 356.5MB in the end (delta: 281.0MB). Free memory was 41.1MB in the beginning and 185.1MB in the end (delta: -144.0MB). Peak memory consumption was 140.0MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,941 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:15:54,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3666.09ms. Allocated memory was 75.5MB in the beginning and 262.1MB in the end (delta: 186.6MB). Free memory was 41.0MB in the beginning and 187.4MB in the end (delta: -146.4MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 215.33ms. Allocated memory is still 262.1MB. Free memory was 187.4MB in the beginning and 165.4MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,942 INFO L158 Benchmark]: Boogie Preprocessor took 258.92ms. Allocated memory is still 262.1MB. Free memory was 165.4MB in the beginning and 137.1MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,943 INFO L158 Benchmark]: RCFGBuilder took 27122.58ms. Allocated memory was 262.1MB in the beginning and 356.5MB in the end (delta: 94.4MB). Free memory was 137.1MB in the beginning and 206.9MB in the end (delta: -69.8MB). Peak memory consumption was 125.6MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,944 INFO L158 Benchmark]: TraceAbstraction took 118348.43ms. Allocated memory is still 356.5MB. Free memory was 205.8MB in the beginning and 185.1MB in the end (delta: 20.7MB). Peak memory consumption was 131.9MB. Max. memory is 16.1GB. [2022-11-22 01:15:54,944 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 356.5MB. Free memory is still 185.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:15:54,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3666.09ms. Allocated memory was 75.5MB in the beginning and 262.1MB in the end (delta: 186.6MB). Free memory was 41.0MB in the beginning and 187.4MB in the end (delta: -146.4MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 215.33ms. Allocated memory is still 262.1MB. Free memory was 187.4MB in the beginning and 165.4MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 258.92ms. Allocated memory is still 262.1MB. Free memory was 165.4MB in the beginning and 137.1MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 27122.58ms. Allocated memory was 262.1MB in the beginning and 356.5MB in the end (delta: 94.4MB). Free memory was 137.1MB in the beginning and 206.9MB in the end (delta: -69.8MB). Peak memory consumption was 125.6MB. Max. memory is 16.1GB. * TraceAbstraction took 118348.43ms. Allocated memory is still 356.5MB. Free memory was 205.8MB in the beginning and 185.1MB in the end (delta: 20.7MB). Peak memory consumption was 131.9MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 356.5MB. Free memory is still 185.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6167. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [\old(major)=108, \result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, fops={66:0}, fops={66:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={20:0}, arg1={20:0}, arg2={110:0}, arg2={110:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp VAL [__key={110:0}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}] [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}, ptr={0:0}, tmp=0] [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={110:0}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, IS_ERR((void const *)ppp_class)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=-2147483648] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=-2147483648] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND TRUE cmd == 1074033724U [L6806] err = -22 VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6807] FCALL mutex_lock_nested(& ppp_mutex, 0U) VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6809] EXPR pf->kind VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, pf->kind=-2147483647, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6809] COND FALSE !((unsigned int )pf->kind == 1U) [L6821] CALL, EXPR atomic_long_read(& file->f_count) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5267] atomic64_t *v ; [L5268] long tmp ; [L5271] v = l [L5272] CALL, EXPR atomic64_read((atomic64_t const *)v) [L5263] EXPR v->counter [L5263] return ((long )*((long volatile *)(& v->counter))); [L5272] RET, EXPR atomic64_read((atomic64_t const *)v) [L5272] tmp = atomic64_read((atomic64_t const *)v) [L5274] return (tmp); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, l={4503599627370496:4503874505547611}, l={4503599627370496:4503874505547611}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, v={4503599627370496:4503874505547611}] [L6821] RET, EXPR atomic_long_read(& file->f_count) VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, atomic_long_read(& file->f_count)=0, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6821] tmp___2 = atomic_long_read(& file->f_count) [L6823] COND TRUE tmp___2 <= 2L VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={111:0}, code___0={-4611686018427387795:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={-9223372036854775699:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp___2=0] [L6825] CALL ppp_release((struct inode *)0, file) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}] [L6335] struct ppp_file *pf ; [L6336] struct ppp *ppp ; [L6337] struct ppp_file const *__mptr ; [L6338] struct ppp_file const *__mptr___0 ; [L6339] struct ppp_file const *__mptr___1 ; [L6340] int tmp ; [L6342] EXPR file->private_data [L6342] pf = (struct ppp_file *)file->private_data [L6343] COND TRUE (unsigned long )pf != (unsigned long )((struct ppp_file *)0) [L6344] file->private_data = (void *)0 [L6345] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={4503599627370496:4503874505547776}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6345] COND TRUE (unsigned int )pf->kind == 1U [L6346] __mptr = (struct ppp_file const *)pf [L6347] ppp = (struct ppp *)__mptr [L6348] EXPR ppp->owner VAL [\old(ldv_module_refcounter)=1, __mptr={4503599627370496:4503874505547776}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp->owner={0:-9079256848778919936}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6348] COND FALSE !((unsigned long )ppp->owner == (unsigned long )file) [L6357] CALL, EXPR atomic_dec_and_test(& pf->refcnt) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, v={4503599627370496:4503874505548040}] [L5253] unsigned char c ; [L5257] return ((unsigned int )c != 0U); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={0:0}, c=2, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, v={4503599627370496:4503874505548040}, v={4503599627370496:4503874505548040}] [L6357] RET, EXPR atomic_dec_and_test(& pf->refcnt) VAL [\old(ldv_module_refcounter)=1, __mptr={4503599627370496:4503874505547776}, __this_module={0:0}, atomic_dec_and_test(& pf->refcnt)=1, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6357] tmp = atomic_dec_and_test(& pf->refcnt) [L6359] COND TRUE tmp != 0 [L6360] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __mptr={4503599627370496:4503874505547776}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={4503599627370496:4503874505547776}, pf->kind=1, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=1, unused={0:0}, unused={0:0}] [L6360] COND TRUE (int )((unsigned int )pf->kind) == 1 [L6369] __mptr___0 = (struct ppp_file const *)pf VAL [\old(ldv_module_refcounter)=1, __mptr={4503599627370496:4503874505547776}, __mptr___0={4503599627370496:4503874505547776}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={4503599627370496:4503874505547499}, file={4503599627370496:4503874505547499}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=1, unused={0:0}, unused={0:0}] [L6370] CALL ppp_destroy_interface((struct ppp *)__mptr___0) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10292] FCALL atomic_dec(& ppp_unit_count) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10294] EXPR ppp->file.dead VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp->file.dead=-2147483648, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10294] COND FALSE !(ppp->file.dead == 0) [L10301] EXPR ppp->n_channels VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp->n_channels=0, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10301] COND FALSE !(ppp->n_channels != 0) [L10310] CALL ppp_ccp_closed(ppp) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={-9223372036854775808:144115188075855872}, xstate={12884901904:-9223372036854775808}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={-9223372036854775808:144115188075855872}, xstate={12884901904:-9223372036854775808}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={-9223372036854775808:144115188075855872}, xstate={12884901904:-9223372036854775808}] [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={-9223372036854775808:144115188075855872}, xcomp->comp_free={-1:12}, xstate={12884901904:-9223372036854775808}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9974] RET (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={4503599627370496:4503874505547776}, ppp={4503599627370496:4503874505547776}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={-9223372036854775808:144115188075855872}, xcomp->comp_free={-1:12}, xstate={12884901904:-9223372036854775808}] [L9975] EXPR xcomp->owner [L9975] CALL ldv_module_put_5(xcomp->owner) [L10926] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854774784}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854774784}, module={0:-9223372036854774784}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854774784}, module={0:-9223372036854774784}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 94 procedures, 1432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 118.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 62.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 mSolverCounterUnknown, 2649 SdHoareTripleChecker+Valid, 61.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2494 mSDsluCounter, 27987 SdHoareTripleChecker+Invalid, 59.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17362 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 486 IncrementalHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 10625 mSDtfsCounter, 486 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3806occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 37 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 20.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 384 ConstructedInterpolants, 1 QuantifiedInterpolants, 600 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4730 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:15:55,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91df53f3-a4fb-45c9-90cf-9e960c59677c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample