./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 e04fb08f 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 12:21:25,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:21:25,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:21:25,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:21:25,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:21:25,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:21:25,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:21:25,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:21:25,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:21:25,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:21:25,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:21:25,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:21:25,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:21:25,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:21:25,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:21:25,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:21:25,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:21:25,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:21:25,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:21:25,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:21:25,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:21:25,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:21:25,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:21:25,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:21:25,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:21:25,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:21:25,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:21:25,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:21:25,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:21:25,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:21:25,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:21:25,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:21:25,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:21:25,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:21:25,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:21:25,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:21:25,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:21:25,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:21:25,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:21:25,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:21:25,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:21:25,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:21:25,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:21:25,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:21:25,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:21:25,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:21:25,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:21:25,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:21:25,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:21:25,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:21:25,498 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:21:25,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:21:25,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:21:25,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:21:25,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:21:25,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:21:25,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:21:25,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:21:25,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:21:25,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:21:25,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:21:25,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:21:25,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:21:25,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:25,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:21:25,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:21:25,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:21:25,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:21:25,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:21:25,503 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:21:25,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:21:25,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:21:25,504 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-16 12:21:25,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:21:25,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:21:25,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:21:25,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:21:25,856 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:21:25,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:21:25,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/03a3c2794/9a95377569494b328fb453c1758e5d6d/FLAG883225c99 [2022-11-16 12:21:26,903 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:21:26,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:21:26,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/03a3c2794/9a95377569494b328fb453c1758e5d6d/FLAG883225c99 [2022-11-16 12:21:27,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/03a3c2794/9a95377569494b328fb453c1758e5d6d [2022-11-16 12:21:27,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:21:27,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:21:27,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:27,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:21:27,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:21:27,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:27" (1/1) ... [2022-11-16 12:21:27,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcedf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:27, skipping insertion in model container [2022-11-16 12:21:27,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:27" (1/1) ... [2022-11-16 12:21:27,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:21:27,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:21:29,495 WARN L229 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-16 12:21:29,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:29,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:21:30,006 WARN L229 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-16 12:21:30,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:30,299 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:21:30,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30 WrapperNode [2022-11-16 12:21:30,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:30,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:30,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:21:30,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:21:30,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,595 INFO L138 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 144, calls inlined = 114, statements flattened = 4248 [2022-11-16 12:21:30,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:30,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:21:30,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:21:30,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:21:30,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:21:30,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:21:30,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:21:30,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:21:30,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (1/1) ... [2022-11-16 12:21:30,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:30,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:30,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:21:30,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:21:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-16 12:21:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-16 12:21:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 12:21:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 12:21:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-16 12:21:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-16 12:21:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-16 12:21:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-16 12:21:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 12:21:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-16 12:21:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-16 12:21:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:21:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 12:21:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 12:21:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:21:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 12:21:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 12:21:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-16 12:21:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-16 12:21:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-16 12:21:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-16 12:21:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-16 12:21:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-16 12:21:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-16 12:21:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-16 12:21:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 12:21:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 12:21:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 12:21:30,969 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 12:21:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:21:30,969 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:21:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:21:30,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:21:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-16 12:21:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-16 12:21:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 12:21:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 12:21:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-16 12:21:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-16 12:21:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-16 12:21:30,971 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-16 12:21:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:21:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:21:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-16 12:21:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-16 12:21:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-16 12:21:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-16 12:21:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-16 12:21:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-16 12:21:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:21:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:21:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:21:30,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:21:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-16 12:21:30,974 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-16 12:21:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:21:30,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:21:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-16 12:21:30,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-16 12:21:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-16 12:21:30,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-16 12:21:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-16 12:21:30,977 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-16 12:21:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-16 12:21:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-16 12:21:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:21:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 12:21:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 12:21:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-16 12:21:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-16 12:21:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:21:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 12:21:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 12:21:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 12:21:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 12:21:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-16 12:21:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-16 12:21:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:21:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:21:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-16 12:21:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-16 12:21:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 12:21:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 12:21:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 12:21:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 12:21:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 12:21:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 12:21:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:21:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:21:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-16 12:21:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-16 12:21:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-16 12:21:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-16 12:21:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 12:21:30,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 12:21:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 12:21:30,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 12:21:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 12:21:30,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 12:21:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-16 12:21:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-16 12:21:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-16 12:21:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-16 12:21:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 12:21:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 12:21:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-16 12:21:30,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-16 12:21:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:21:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 12:21:30,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 12:21:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-16 12:21:30,990 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-16 12:21:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:21:30,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:21:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-16 12:21:30,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-16 12:21:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:21:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-16 12:21:30,993 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-16 12:21:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-16 12:21:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-16 12:21:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-16 12:21:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-16 12:21:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:21:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 12:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 12:21:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-16 12:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-16 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-16 12:21:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-16 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-16 12:21:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-16 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-16 12:21:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-16 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-16 12:21:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-16 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-16 12:21:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-16 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:21:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:21:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-16 12:21:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-16 12:21:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-16 12:21:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-16 12:21:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:21:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 12:21:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 12:21:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-16 12:21:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-16 12:21:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-16 12:21:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-16 12:21:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-16 12:21:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-16 12:21:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-16 12:21:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-16 12:21:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:21:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 12:21:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 12:21:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 12:21:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 12:21:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:21:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:21:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:21:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:21:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:21:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-16 12:21:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-16 12:21:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:21:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:21:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 12:21:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 12:21:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 12:21:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 12:21:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 12:21:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 12:21:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 12:21:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 12:21:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-16 12:21:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-16 12:21:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 12:21:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 12:21:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 12:21:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 12:21:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 12:21:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 12:21:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-16 12:21:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-16 12:21:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 12:21:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 12:21:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-16 12:21:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-16 12:21:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 12:21:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 12:21:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-16 12:21:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-16 12:21:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-16 12:21:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-16 12:21:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-16 12:21:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-16 12:21:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:21:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-16 12:21:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-16 12:21:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:21:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:21:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:21:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:21:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-16 12:21:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-16 12:21:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:21:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:21:31,815 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:21:31,819 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:21:32,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-16 12:21:32,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-16 12:21:33,608 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:21:33,612 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:21:33,614 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume !false; [2022-11-16 12:21:34,208 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume !false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2022-11-16 12:21:34,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume !false; [2022-11-16 12:21:34,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##143: assume false; [2022-11-16 12:21:34,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2022-11-16 12:21:34,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2022-11-16 12:21:34,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-11-16 12:21:34,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-11-16 12:21:34,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-11-16 12:21:34,212 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-11-16 12:21:34,216 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-11-16 12:21:34,216 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-16 12:21:34,216 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-16 12:21:34,404 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:21:34,412 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:21:35,457 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 [2022-11-16 12:21:35,458 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; [2022-11-16 12:21:35,458 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; [2022-11-16 12:21:35,458 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 [2022-11-16 12:21:35,458 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-16 12:21:35,458 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-16 12:21:35,458 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-16 12:21:35,458 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-16 12:21:35,459 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-16 12:21:35,459 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-16 12:21:35,459 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume !false; [2022-11-16 12:21:35,459 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume false; [2022-11-16 12:21:35,533 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:21:35,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:21:35,553 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:21:35,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:35 BoogieIcfgContainer [2022-11-16 12:21:35,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:21:35,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:21:35,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:21:35,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:21:35,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:27" (1/3) ... [2022-11-16 12:21:35,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be149bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:35, skipping insertion in model container [2022-11-16 12:21:35,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:30" (2/3) ... [2022-11-16 12:21:35,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be149bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:35, skipping insertion in model container [2022-11-16 12:21:35,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:35" (3/3) ... [2022-11-16 12:21:35,566 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:21:35,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:21:35,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:21:35,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:21:35,723 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64509c70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:21:35,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:21:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 1457 states, 1030 states have (on average 1.358252427184466) internal successors, (1399), 1065 states have internal predecessors, (1399), 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) [2022-11-16 12:21:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:21:35,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:35,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:35,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 910365185, now seen corresponding path program 1 times [2022-11-16 12:21:35,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:35,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994871569] [2022-11-16 12:21:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:35,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:36,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:36,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994871569] [2022-11-16 12:21:36,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994871569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:36,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:36,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:36,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555921124] [2022-11-16 12:21:36,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:36,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:36,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:36,344 INFO L87 Difference]: Start difference. First operand has 1457 states, 1030 states have (on average 1.358252427184466) internal successors, (1399), 1065 states have internal predecessors, (1399), 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 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) [2022-11-16 12:21:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:36,835 INFO L93 Difference]: Finished difference Result 4325 states and 6262 transitions. [2022-11-16 12:21:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:36,838 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 [2022-11-16 12:21:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:36,889 INFO L225 Difference]: With dead ends: 4325 [2022-11-16 12:21:36,889 INFO L226 Difference]: Without dead ends: 2854 [2022-11-16 12:21:36,909 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 [2022-11-16 12:21:36,914 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2012 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 4381 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 [2022-11-16 12:21:36,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 4381 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:21:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-11-16 12:21:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2851. [2022-11-16 12:21:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2009 states have (on average 1.3305126928820308) internal successors, (2673), 2076 states have internal predecessors, (2673), 651 states have call successors, (651), 191 states have call predecessors, (651), 190 states have return successors, (655), 633 states have call predecessors, (655), 649 states have call successors, (655) [2022-11-16 12:21:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3979 transitions. [2022-11-16 12:21:37,239 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3979 transitions. Word has length 12 [2022-11-16 12:21:37,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:37,240 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 3979 transitions. [2022-11-16 12:21:37,240 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) [2022-11-16 12:21:37,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3979 transitions. [2022-11-16 12:21:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-16 12:21:37,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:37,261 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] [2022-11-16 12:21:37,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:21:37,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:37,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1933548938, now seen corresponding path program 1 times [2022-11-16 12:21:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:37,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119736012] [2022-11-16 12:21:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:37,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:21:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:21:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 12:21:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:21:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:21:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:21:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:21:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:21:37,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:37,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119736012] [2022-11-16 12:21:37,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119736012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:37,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:37,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:21:37,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946955609] [2022-11-16 12:21:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:37,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:21:37,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:21:37,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:21:37,810 INFO L87 Difference]: Start difference. First operand 2851 states and 3979 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 12:21:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:42,984 INFO L93 Difference]: Finished difference Result 6310 states and 8940 transitions. [2022-11-16 12:21:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:21:42,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 3 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 [2022-11-16 12:21:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:43,064 INFO L225 Difference]: With dead ends: 6310 [2022-11-16 12:21:43,068 INFO L226 Difference]: Without dead ends: 3486 [2022-11-16 12:21:43,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:21:43,083 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 938 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:43,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 3331 Invalid, 2303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [384 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-16 12:21:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2022-11-16 12:21:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 3130. [2022-11-16 12:21:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 2230 states have (on average 1.3367713004484305) internal successors, (2981), 2299 states have internal predecessors, (2981), 709 states have call successors, (709), 191 states have call predecessors, (709), 190 states have return successors, (714), 691 states have call predecessors, (714), 707 states have call successors, (714) [2022-11-16 12:21:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4404 transitions. [2022-11-16 12:21:43,291 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4404 transitions. Word has length 74 [2022-11-16 12:21:43,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:43,292 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4404 transitions. [2022-11-16 12:21:43,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 12:21:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4404 transitions. [2022-11-16 12:21:43,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 12:21:43,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:43,304 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] [2022-11-16 12:21:43,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:21:43,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:43,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:43,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1760573988, now seen corresponding path program 1 times [2022-11-16 12:21:43,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:43,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722238181] [2022-11-16 12:21:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:43,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:21:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-16 12:21:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:21:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:21:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:21:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:21:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:21:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:21:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:21:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:21:43,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:43,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722238181] [2022-11-16 12:21:43,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722238181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:43,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:43,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:21:43,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550345367] [2022-11-16 12:21:43,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:43,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:43,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:43,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:43,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:43,943 INFO L87 Difference]: Start difference. First operand 3130 states and 4404 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-16 12:21:49,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:49,926 INFO L93 Difference]: Finished difference Result 6576 states and 9337 transitions. [2022-11-16 12:21:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:49,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 92 [2022-11-16 12:21:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:49,954 INFO L225 Difference]: With dead ends: 6576 [2022-11-16 12:21:49,954 INFO L226 Difference]: Without dead ends: 3470 [2022-11-16 12:21:49,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:49,977 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 767 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 3517 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 5847 SdHoareTripleChecker+Invalid, 3862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 3517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:49,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 5847 Invalid, 3862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [345 Valid, 3517 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-16 12:21:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-16 12:21:50,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3130. [2022-11-16 12:21:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 2230 states have (on average 1.3358744394618833) internal successors, (2979), 2297 states have internal predecessors, (2979), 709 states have call successors, (709), 191 states have call predecessors, (709), 190 states have return successors, (714), 691 states have call predecessors, (714), 707 states have call successors, (714) [2022-11-16 12:21:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4402 transitions. [2022-11-16 12:21:50,232 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4402 transitions. Word has length 92 [2022-11-16 12:21:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:50,232 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4402 transitions. [2022-11-16 12:21:50,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-16 12:21:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4402 transitions. [2022-11-16 12:21:50,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 12:21:50,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:50,242 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:50,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:21:50,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:50,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1504245712, now seen corresponding path program 1 times [2022-11-16 12:21:50,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:50,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574396070] [2022-11-16 12:21:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:21:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:21:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:21:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:21:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:21:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:21:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:21:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:21:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:21:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:21:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:21:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:21:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:21:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:21:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:21:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-16 12:21:50,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:50,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574396070] [2022-11-16 12:21:50,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574396070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:50,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:50,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259531848] [2022-11-16 12:21:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:50,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:21:50,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:50,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:21:50,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:21:50,695 INFO L87 Difference]: Start difference. First operand 3130 states and 4402 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:21:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:56,410 INFO L93 Difference]: Finished difference Result 7036 states and 10191 transitions. [2022-11-16 12:21:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2022-11-16 12:21:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:56,439 INFO L225 Difference]: With dead ends: 7036 [2022-11-16 12:21:56,439 INFO L226 Difference]: Without dead ends: 3934 [2022-11-16 12:21:56,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:21:56,457 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 1587 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:56,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 3811 Invalid, 3822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [944 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 12:21:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-11-16 12:21:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3132. [2022-11-16 12:21:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 2232 states have (on average 1.335573476702509) internal successors, (2981), 2299 states have internal predecessors, (2981), 709 states have call successors, (709), 191 states have call predecessors, (709), 190 states have return successors, (714), 691 states have call predecessors, (714), 707 states have call successors, (714) [2022-11-16 12:21:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4404 transitions. [2022-11-16 12:21:56,641 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4404 transitions. Word has length 128 [2022-11-16 12:21:56,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:56,643 INFO L495 AbstractCegarLoop]: Abstraction has 3132 states and 4404 transitions. [2022-11-16 12:21:56,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:21:56,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4404 transitions. [2022-11-16 12:21:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 12:21:56,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:56,656 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] [2022-11-16 12:21:56,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:21:56,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -333167602, now seen corresponding path program 1 times [2022-11-16 12:21:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:56,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247725416] [2022-11-16 12:21:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:21:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:21:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:21:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:56,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:21:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:21:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:21:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:21:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:21:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:21:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:21:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:21:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:21:57,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:57,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247725416] [2022-11-16 12:21:57,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247725416] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:57,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503178440] [2022-11-16 12:21:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:57,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:57,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:57,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:21:57,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:21:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:57,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:21:57,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:21:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:21:58,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503178440] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:58,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:21:58,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2022-11-16 12:21:58,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918438975] [2022-11-16 12:21:58,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:58,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:58,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:58,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:58,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:58,164 INFO L87 Difference]: Start difference. First operand 3132 states and 4404 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 6 states have internal predecessors, (135), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-16 12:22:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:05,908 INFO L93 Difference]: Finished difference Result 7906 states and 11544 transitions. [2022-11-16 12:22:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:22:05,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 6 states have internal predecessors, (135), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 107 [2022-11-16 12:22:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:05,945 INFO L225 Difference]: With dead ends: 7906 [2022-11-16 12:22:05,945 INFO L226 Difference]: Without dead ends: 4802 [2022-11-16 12:22:05,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:22:05,959 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 2523 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 4344 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 5369 SdHoareTripleChecker+Invalid, 5619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 4344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:05,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2831 Valid, 5369 Invalid, 5619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1275 Valid, 4344 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-16 12:22:05,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2022-11-16 12:22:06,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 3972. [2022-11-16 12:22:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3972 states, 2898 states have (on average 1.3547273982056591) internal successors, (3926), 2971 states have internal predecessors, (3926), 883 states have call successors, (883), 191 states have call predecessors, (883), 190 states have return successors, (891), 865 states have call predecessors, (891), 881 states have call successors, (891) [2022-11-16 12:22:06,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 5700 transitions. [2022-11-16 12:22:06,206 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 5700 transitions. Word has length 107 [2022-11-16 12:22:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:06,207 INFO L495 AbstractCegarLoop]: Abstraction has 3972 states and 5700 transitions. [2022-11-16 12:22:06,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 6 states have internal predecessors, (135), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-16 12:22:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 5700 transitions. [2022-11-16 12:22:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 12:22:06,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:06,217 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] [2022-11-16 12:22:06,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:22:06,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:22:06,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:06,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash 990378418, now seen corresponding path program 1 times [2022-11-16 12:22:06,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:06,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984434975] [2022-11-16 12:22:06,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:06,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:22:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:22:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:22:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:22:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:22:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:22:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:22:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:22:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:22:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:22:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:22:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:22:07,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:07,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984434975] [2022-11-16 12:22:07,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984434975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:07,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:07,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:22:07,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424445099] [2022-11-16 12:22:07,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:07,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:22:07,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:07,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:22:07,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:22:07,454 INFO L87 Difference]: Start difference. First operand 3972 states and 5700 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-16 12:22:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:17,514 INFO L93 Difference]: Finished difference Result 8742 states and 12898 transitions. [2022-11-16 12:22:17,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:22:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 4 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 107 [2022-11-16 12:22:17,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:17,542 INFO L225 Difference]: With dead ends: 8742 [2022-11-16 12:22:17,542 INFO L226 Difference]: Without dead ends: 4798 [2022-11-16 12:22:17,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:22:17,561 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 1562 mSDsluCounter, 4502 mSDsCounter, 0 mSdLazyCounter, 5428 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5888 SdHoareTripleChecker+Invalid, 6367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 5428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:17,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 5888 Invalid, 6367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [939 Valid, 5428 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-16 12:22:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2022-11-16 12:22:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 3980. [2022-11-16 12:22:17,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 2904 states have (on average 1.3546831955922864) internal successors, (3934), 2977 states have internal predecessors, (3934), 885 states have call successors, (885), 191 states have call predecessors, (885), 190 states have return successors, (893), 867 states have call predecessors, (893), 883 states have call successors, (893) [2022-11-16 12:22:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5712 transitions. [2022-11-16 12:22:17,781 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5712 transitions. Word has length 107 [2022-11-16 12:22:17,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:17,781 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 5712 transitions. [2022-11-16 12:22:17,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-16 12:22:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5712 transitions. [2022-11-16 12:22:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 12:22:17,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:17,790 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:17,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:22:17,791 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash 975880111, now seen corresponding path program 1 times [2022-11-16 12:22:17,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:17,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185036752] [2022-11-16 12:22:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:17,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:22:18,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:22:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:22:18,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:22:18,720 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:22:18,721 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:22:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:22:18,728 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:18,732 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:22:18,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:22:18 BoogieIcfgContainer [2022-11-16 12:22:18,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:22:18,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:22:18,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:22:18,906 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:22:18,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:35" (3/4) ... [2022-11-16 12:22:18,910 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:22:18,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:22:18,913 INFO L158 Benchmark]: Toolchain (without parser) took 51586.49ms. Allocated memory was 132.1MB in the beginning and 767.6MB in the end (delta: 635.4MB). Free memory was 84.4MB in the beginning and 244.7MB in the end (delta: -160.3MB). Peak memory consumption was 474.9MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,913 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:18,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2967.63ms. Allocated memory was 132.1MB in the beginning and 195.0MB in the end (delta: 62.9MB). Free memory was 84.0MB in the beginning and 80.1MB in the end (delta: 3.9MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 293.56ms. Allocated memory was 195.0MB in the beginning and 291.5MB in the end (delta: 96.5MB). Free memory was 80.1MB in the beginning and 213.1MB in the end (delta: -133.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,914 INFO L158 Benchmark]: Boogie Preprocessor took 277.55ms. Allocated memory is still 291.5MB. Free memory was 213.1MB in the beginning and 186.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,914 INFO L158 Benchmark]: RCFGBuilder took 4681.99ms. Allocated memory is still 291.5MB. Free memory was 186.6MB in the beginning and 157.5MB in the end (delta: 29.1MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,915 INFO L158 Benchmark]: TraceAbstraction took 43346.04ms. Allocated memory was 291.5MB in the beginning and 767.6MB in the end (delta: 476.1MB). Free memory was 157.5MB in the beginning and 244.7MB in the end (delta: -87.2MB). Peak memory consumption was 387.8MB. Max. memory is 16.1GB. [2022-11-16 12:22:18,915 INFO L158 Benchmark]: Witness Printer took 6.73ms. Allocated memory is still 767.6MB. Free memory is still 244.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:18,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2967.63ms. Allocated memory was 132.1MB in the beginning and 195.0MB in the end (delta: 62.9MB). Free memory was 84.0MB in the beginning and 80.1MB in the end (delta: 3.9MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 293.56ms. Allocated memory was 195.0MB in the beginning and 291.5MB in the end (delta: 96.5MB). Free memory was 80.1MB in the beginning and 213.1MB in the end (delta: -133.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 277.55ms. Allocated memory is still 291.5MB. Free memory was 213.1MB in the beginning and 186.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4681.99ms. Allocated memory is still 291.5MB. Free memory was 186.6MB in the beginning and 157.5MB in the end (delta: 29.1MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. * TraceAbstraction took 43346.04ms. Allocated memory was 291.5MB in the beginning and 767.6MB in the end (delta: 476.1MB). Free memory was 157.5MB in the beginning and 244.7MB in the end (delta: -87.2MB). Peak memory consumption was 387.8MB. Max. memory is 16.1GB. * Witness Printer took 6.73ms. Allocated memory is still 767.6MB. Free memory is still 244.7MB. 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: [L6173] static atomic_t channel_count = {0}; [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}; [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}; [L10620] int LDV_IN_INTERRUPT ; [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}; [L6174] static int ppp_net_id ; [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}; [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}}; [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}; [L10813] int ldv_module_refcounter = 1; [L6207] static struct class *ppp_class ; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L6172] static atomic_t ppp_unit_count = {0}; [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}}}}; VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, fops={65:0}, fops={65:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551869:18446744073709551891}, arg0={18446744073709551869:18446744073709551891}, arg0={18446744073709551869:18446744073709551891}, arg1={20:0}, arg1={20:0}, arg2={97:0}, arg2={97:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={97:0}, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, ptr={0:0}] [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [\result=0, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, ptr={0:0}, ptr={0:0}, tmp=0] [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={97:0}, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___1=1] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND TRUE tmp___0 == 0 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=0, tmp___1=1] [L10694] COND TRUE ldv_s_ppp_device_fops_file_operations == 0 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=0, tmp___1=1] [L10696] CALL, EXPR ppp_open(var_group2, var_group1) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6316] bool tmp ; [L6317] int tmp___0 ; [L6320] CALL, EXPR capable(12) [L11058] return __VERIFIER_nondet_bool(); [L6320] RET, EXPR capable(12) [L6320] tmp = capable(12) [L6322] COND TRUE \read(tmp) [L6323] tmp___0 = 0 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={18446744073709551878:-2}, file={18446744073709551878:-2}, inode={18446744073709551865:18446744073709551861}, inode={18446744073709551865:18446744073709551861}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=1, tmp___0=0] [L6327] COND FALSE !(\read(tmp___0)) [L6331] return (0); VAL [\result=0, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={18446744073709551878:-2}, file={18446744073709551878:-2}, inode={18446744073709551865:18446744073709551861}, inode={18446744073709551865:18446744073709551861}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=1, tmp___0=0] [L10696] RET, EXPR ppp_open(var_group2, var_group1) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_open(var_group2, var_group1)=0, ppp_unit_count={69:0}, tmp=0, tmp___0=0, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10696] res_ppp_open_3 = ppp_open(var_group2, var_group1) [L10697] FCALL ldv_check_return_value(res_ppp_open_3) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=0, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10699] COND FALSE !(res_ppp_open_3 != 0) [L10703] ldv_s_ppp_device_fops_file_operations = ldv_s_ppp_device_fops_file_operations + 1 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=0, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=0, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, res_ppp_open_3=0, tmp=0, tmp___0=5, tmp___1=1, var_group1={18446744073709551878:-2}, var_group2={18446744073709551865:18446744073709551861}] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, pf->kind=-8589934591, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, pf->kind=-8589934591, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6931] FCALL mutex_lock_nested(& ppp_mutex, 0U) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L7014] FCALL might_fault() VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551891}, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L7037] val = (int )__val_gu___1 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7038] COND FALSE !(__ret_gu___1 != 0) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7043] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7043] RET spin_lock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7044] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7044] RET spin_lock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=79, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7047] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7047] RET spin_unlock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=79, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7048] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7048] RET spin_unlock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=79, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7050] COND TRUE (cflags & 64) != 0 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={18446744073709551854:-237}, __ret_gu___1=0, __this_module={18446744073709551869:18446744073709551891}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=79, channel_count={60:0}, cmd=1074033753, code={101:0}, code___0={95:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551878:-2}, file={18446744073709551878:-2}, idle={99:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={98:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:-3}, pf={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, val=-4] [L7052] CALL ppp_ccp_closed(ppp) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={18446744073709551887:18446744073709551868}, rstate={18446744073709551893:18446744073709551886}, xcomp={18446744073709551544:-17}, xstate={18446744073709551544:73}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={18446744073709551887:18446744073709551868}, rstate={18446744073709551893:18446744073709551886}, xcomp={18446744073709551544:-17}, xstate={18446744073709551544:73}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={18446744073709551887:18446744073709551868}, rstate={18446744073709551893:18446744073709551886}, xcomp={18446744073709551544:-17}, 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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={18446744073709551887:18446744073709551868}, rstate={18446744073709551893:18446744073709551886}, xcomp={18446744073709551544:-17}, xcomp->comp_free={-1:12}, xstate={18446744073709551544:73}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={18446744073709551854:-237}, ppp={18446744073709551854:-237}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={18446744073709551887:18446744073709551868}, rstate={18446744073709551893:18446744073709551886}, xcomp={18446744073709551544:-17}, 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={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={78:-77}, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551891}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 97 procedures, 1457 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.1s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 35.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10254 SdHoareTripleChecker+Valid, 32.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9389 mSDsluCounter, 28627 SdHoareTripleChecker+Invalid, 28.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19120 mSDsCounter, 3889 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18094 IncrementalHoareTripleChecker+Invalid, 21983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3889 mSolverCounterUnsat, 9507 mSDtfsCounter, 18094 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 353 GetRequests, 322 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3980occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 3149 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 755 NumberOfCodeBlocks, 755 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 726 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1593 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 100/112 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 [2022-11-16 12:22:18,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 12:22:21,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:22:21,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:22:21,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:22:21,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:22:21,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:22:21,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:22:21,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:22:21,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:22:21,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:22:21,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:22:21,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:22:21,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:22:21,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:22:21,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:22:21,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:22:21,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:22:21,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:22:21,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:22:21,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:22:21,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:22:21,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:22:21,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:22:21,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:22:21,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:22:21,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:22:21,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:22:21,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:22:21,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:22:21,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:22:21,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:22:21,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:22:21,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:22:21,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:22:21,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:22:21,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:22:21,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:22:21,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:22:21,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:22:21,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:22:21,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:22:21,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:22:21,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:22:21,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:22:21,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:22:21,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:22:21,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:22:21,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:22:21,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:22:21,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:22:21,333 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:22:21,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:22:21,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:22:21,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:22:21,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:22:21,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:22:21,336 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:22:21,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:22:21,336 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:22:21,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:22:21,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:22:21,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:22:21,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:22:21,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:22:21,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:22:21,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:21,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:22:21,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:22:21,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:22:21,339 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:22:21,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:22:21,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:22:21,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:22:21,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:22:21,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:22:21,341 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-16 12:22:21,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:22:21,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:22:21,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:22:21,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:22:21,826 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:22:21,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:22:21,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/f0e58e3db/616661a17b6445388f0fee8224e9acf9/FLAG6dd243bc0 [2022-11-16 12:22:22,949 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:22:22,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:22:22,999 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/f0e58e3db/616661a17b6445388f0fee8224e9acf9/FLAG6dd243bc0 [2022-11-16 12:22:23,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/data/f0e58e3db/616661a17b6445388f0fee8224e9acf9 [2022-11-16 12:22:23,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:22:23,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:22:23,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:23,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:22:23,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:22:23,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:23" (1/1) ... [2022-11-16 12:22:23,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ede466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:23, skipping insertion in model container [2022-11-16 12:22:23,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:23" (1/1) ... [2022-11-16 12:22:23,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:22:23,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:22:25,820 WARN L229 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-16 12:22:25,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:25,930 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:22:25,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:22:26,350 WARN L229 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-16 12:22:26,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:26,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:22:26,750 WARN L229 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_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-16 12:22:26,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:27,164 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:22:27,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27 WrapperNode [2022-11-16 12:22:27,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:27,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:27,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:22:27,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:22:27,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,545 INFO L138 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 147, calls inlined = 117, statements flattened = 4122 [2022-11-16 12:22:27,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:27,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:22:27,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:22:27,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:22:27,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:22:27,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:22:27,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:22:27,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:22:27,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (1/1) ... [2022-11-16 12:22:27,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:27,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:27,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:22:27,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:22:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-16 12:22:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-16 12:22:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 12:22:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 12:22:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-16 12:22:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-16 12:22:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-16 12:22:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-16 12:22:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 12:22:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-16 12:22:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-16 12:22:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:22:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:22:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 12:22:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 12:22:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-16 12:22:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:22:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 12:22:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 12:22:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-16 12:22:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-16 12:22:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-16 12:22:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-16 12:22:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-16 12:22:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-16 12:22:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-16 12:22:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-16 12:22:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 12:22:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 12:22:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 12:22:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 12:22:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:22:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:22:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:22:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:22:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-16 12:22:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-16 12:22:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 12:22:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 12:22:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-16 12:22:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-16 12:22:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-16 12:22:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-16 12:22:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-16 12:22:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-16 12:22:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:22:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:22:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-16 12:22:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-16 12:22:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-16 12:22:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-16 12:22:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-16 12:22:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-16 12:22:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:22:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:22:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:22:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:22:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-16 12:22:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-16 12:22:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:22:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:22:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-16 12:22:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-16 12:22:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-16 12:22:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-16 12:22:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-16 12:22:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-16 12:22:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-16 12:22:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-16 12:22:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:22:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 12:22:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 12:22:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-16 12:22:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-16 12:22:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:22:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 12:22:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 12:22:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 12:22:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 12:22:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 12:22:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 12:22:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-16 12:22:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-16 12:22:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-16 12:22:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:22:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:22:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:22:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-16 12:22:27,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-16 12:22:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 12:22:27,873 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 12:22:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:22:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 12:22:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 12:22:27,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 12:22:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-16 12:22:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 12:22:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 12:22:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:22:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:22:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-16 12:22:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-16 12:22:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-16 12:22:27,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-16 12:22:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 12:22:27,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 12:22:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 12:22:27,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 12:22:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 12:22:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 12:22:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-16 12:22:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-16 12:22:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-16 12:22:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-16 12:22:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 12:22:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 12:22:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-16 12:22:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-16 12:22:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 12:22:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 12:22:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-16 12:22:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-16 12:22:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:22:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:22:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-16 12:22:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-16 12:22:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-16 12:22:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-16 12:22:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-16 12:22:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-16 12:22:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-16 12:22:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-16 12:22:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 12:22:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 12:22:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-16 12:22:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-16 12:22:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-16 12:22:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-16 12:22:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-16 12:22:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-16 12:22:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-16 12:22:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-16 12:22:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-16 12:22:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-16 12:22:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-16 12:22:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-16 12:22:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:22:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:22:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-16 12:22:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-16 12:22:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-16 12:22:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-16 12:22:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 12:22:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 12:22:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-16 12:22:27,884 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-16 12:22:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 12:22:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-16 12:22:27,884 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-16 12:22:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 12:22:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 12:22:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 12:22:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-16 12:22:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-16 12:22:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-16 12:22:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-16 12:22:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-16 12:22:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-16 12:22:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:22:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 12:22:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 12:22:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 12:22:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 12:22:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:22:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:22:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:22:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:22:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:22:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 12:22:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 12:22:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:22:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:22:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 12:22:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 12:22:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 12:22:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 12:22:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 12:22:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 12:22:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 12:22:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 12:22:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 12:22:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-16 12:22:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-16 12:22:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 12:22:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 12:22:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 12:22:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 12:22:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 12:22:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 12:22:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-16 12:22:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-16 12:22:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 12:22:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 12:22:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-16 12:22:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-16 12:22:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-16 12:22:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-16 12:22:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 12:22:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-16 12:22:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-16 12:22:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:22:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:22:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:22:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:22:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-16 12:22:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-16 12:22:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:22:27,893 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:22:28,628 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:22:28,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:22:32,437 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-16 12:22:32,438 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-16 12:22:43,249 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:22:43,255 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:22:43,259 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:22:43,262 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:22:43,272 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 12:22:55,866 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 [2022-11-16 12:22:55,866 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; [2022-11-16 12:22:55,866 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume !false; [2022-11-16 12:22:55,867 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume false; [2022-11-16 12:22:55,867 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; [2022-11-16 12:22:55,867 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 [2022-11-16 12:22:55,867 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume !false; [2022-11-16 12:22:55,867 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##260: assume false; [2022-11-16 12:22:55,868 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2022-11-16 12:22:55,868 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2022-11-16 12:22:55,868 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-16 12:22:55,868 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-16 12:22:55,868 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-11-16 12:22:55,869 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-11-16 12:22:55,869 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume !false; [2022-11-16 12:22:55,869 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##205: assume false; [2022-11-16 12:22:55,869 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2022-11-16 12:22:55,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2022-11-16 12:22:55,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##317: assume false; [2022-11-16 12:22:55,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume !false; [2022-11-16 12:22:55,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume !false; [2022-11-16 12:22:55,870 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume false; [2022-11-16 12:22:55,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume !false; [2022-11-16 12:22:55,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume false; [2022-11-16 12:22:55,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-16 12:22:55,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-16 12:22:55,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-16 12:22:55,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-16 12:22:55,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-11-16 12:22:55,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-11-16 12:22:55,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-16 12:22:55,872 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-11-16 12:22:55,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-16 12:22:55,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-11-16 12:22:55,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-11-16 12:22:55,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2022-11-16 12:22:55,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2022-11-16 12:22:55,874 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2022-11-16 12:22:55,874 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2022-11-16 12:22:55,874 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false; [2022-11-16 12:22:55,874 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false; [2022-11-16 12:22:55,874 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-11-16 12:22:55,875 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##367: assume !false; [2022-11-16 12:22:55,875 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume false; [2022-11-16 12:22:55,977 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:22:55,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:22:55,997 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 12:22:56,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:56 BoogieIcfgContainer [2022-11-16 12:22:56,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:22:56,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:22:56,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:22:56,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:22:56,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:22:23" (1/3) ... [2022-11-16 12:22:56,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e82da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:56, skipping insertion in model container [2022-11-16 12:22:56,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:27" (2/3) ... [2022-11-16 12:22:56,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e82da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:56, skipping insertion in model container [2022-11-16 12:22:56,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:56" (3/3) ... [2022-11-16 12:22:56,012 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-16 12:22:56,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:22:56,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:22:56,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:22:56,142 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1cd564e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:22:56,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:22:56,153 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) [2022-11-16 12:22:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:22:56,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:56,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:56,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2078505288, now seen corresponding path program 1 times [2022-11-16 12:22:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:22:56,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96082157] [2022-11-16 12:22:56,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:56,186 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 [2022-11-16 12:22:56,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:22:56,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:22:56,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:22:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:57,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:22:57,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:22:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:57,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:22:57,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:22:57,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96082157] [2022-11-16 12:22:57,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96082157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:57,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:57,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:22:57,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017411774] [2022-11-16 12:22:57,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:57,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:57,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:22:57,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:57,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:57,413 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) [2022-11-16 12:22:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:58,005 INFO L93 Difference]: Finished difference Result 4250 states and 6135 transitions. [2022-11-16 12:22:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:22:58,008 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 [2022-11-16 12:22:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:58,061 INFO L225 Difference]: With dead ends: 4250 [2022-11-16 12:22:58,062 INFO L226 Difference]: Without dead ends: 2804 [2022-11-16 12:22:58,083 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 [2022-11-16 12:22:58,090 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:58,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 4305 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-11-16 12:22:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2801. [2022-11-16 12:22:58,468 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) [2022-11-16 12:22:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3908 transitions. [2022-11-16 12:22:58,501 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3908 transitions. Word has length 12 [2022-11-16 12:22:58,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:58,502 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3908 transitions. [2022-11-16 12:22:58,502 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) [2022-11-16 12:22:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3908 transitions. [2022-11-16 12:22:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-16 12:22:58,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:58,520 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] [2022-11-16 12:22:58,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:22:58,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:22:58,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1790442611, now seen corresponding path program 1 times [2022-11-16 12:22:58,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:22:58,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774034270] [2022-11-16 12:22:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:58,734 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 [2022-11-16 12:22:58,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:22:58,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:22:58,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:00,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:23:00,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:23:00,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:23:00,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:23:00,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774034270] [2022-11-16 12:23:00,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774034270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:00,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:00,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:00,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892581336] [2022-11-16 12:23:00,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:00,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:23:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:00,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:23:00,233 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) [2022-11-16 12:23:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:00,603 INFO L93 Difference]: Finished difference Result 5578 states and 7787 transitions. [2022-11-16 12:23:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:23:00,609 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 [2022-11-16 12:23:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:00,637 INFO L225 Difference]: With dead ends: 5578 [2022-11-16 12:23:00,637 INFO L226 Difference]: Without dead ends: 2801 [2022-11-16 12:23:00,649 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 [2022-11-16 12:23:00,651 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 [2022-11-16 12:23:00,654 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] [2022-11-16 12:23:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-16 12:23:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2022-11-16 12:23:00,800 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) [2022-11-16 12:23:00,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3906 transitions. [2022-11-16 12:23:00,822 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3906 transitions. Word has length 74 [2022-11-16 12:23:00,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:00,822 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3906 transitions. [2022-11-16 12:23:00,823 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) [2022-11-16 12:23:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3906 transitions. [2022-11-16 12:23:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-16 12:23:00,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:00,829 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] [2022-11-16 12:23:00,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:23:01,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:01,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:01,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:01,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1751657911, now seen corresponding path program 1 times [2022-11-16 12:23:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:23:01,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846838859] [2022-11-16 12:23:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:01,056 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 [2022-11-16 12:23:01,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:23:01,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:23:01,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:02,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:23:02,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:23:02,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:23:02,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:23:02,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846838859] [2022-11-16 12:23:02,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846838859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:02,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:02,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:23:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99114258] [2022-11-16 12:23:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:02,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:23:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:02,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:02,812 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) [2022-11-16 12:23:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:03,216 INFO L93 Difference]: Finished difference Result 6586 states and 9372 transitions. [2022-11-16 12:23:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:03,217 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 [2022-11-16 12:23:03,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:03,242 INFO L225 Difference]: With dead ends: 6586 [2022-11-16 12:23:03,242 INFO L226 Difference]: Without dead ends: 3812 [2022-11-16 12:23:03,253 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 [2022-11-16 12:23:03,257 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 [2022-11-16 12:23:03,258 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] [2022-11-16 12:23:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-11-16 12:23:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3796. [2022-11-16 12:23:03,469 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) [2022-11-16 12:23:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5465 transitions. [2022-11-16 12:23:03,496 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5465 transitions. Word has length 89 [2022-11-16 12:23:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:03,497 INFO L495 AbstractCegarLoop]: Abstraction has 3796 states and 5465 transitions. [2022-11-16 12:23:03,497 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) [2022-11-16 12:23:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5465 transitions. [2022-11-16 12:23:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-16 12:23:03,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:03,506 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] [2022-11-16 12:23:03,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:03,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:03,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1606886577, now seen corresponding path program 1 times [2022-11-16 12:23:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:23:03,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518232371] [2022-11-16 12:23:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:03,733 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 [2022-11-16 12:23:03,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:23:03,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:23:03,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:05,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:23:05,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:05,640 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:23:05,646 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 [2022-11-16 12:23:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:23:10,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:23:10,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:23:10,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518232371] [2022-11-16 12:23:10,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518232371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:10,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:10,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:10,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081258793] [2022-11-16 12:23:10,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:10,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:10,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:23:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=11, Unknown=2, NotChecked=0, Total=20 [2022-11-16 12:23:10,896 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) [2022-11-16 12:23:14,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:16,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:18,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:20,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:22,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:24,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:30,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:32,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:35,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:37,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:42,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:44,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:49,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:51,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:54,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:56,473 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 [] [2022-11-16 12:23:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:57,713 INFO L93 Difference]: Finished difference Result 7578 states and 10952 transitions. [2022-11-16 12:23:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:23:57,719 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 [2022-11-16 12:23:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:57,743 INFO L225 Difference]: With dead ends: 7578 [2022-11-16 12:23:57,744 INFO L226 Difference]: Without dead ends: 3810 [2022-11-16 12:23:57,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2022-11-16 12:23:57,762 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 4 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7489 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:57,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7489 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 14 Unknown, 10 Unchecked, 46.4s Time] [2022-11-16 12:23:57,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-11-16 12:23:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3804. [2022-11-16 12:23:57,957 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) [2022-11-16 12:23:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5477 transitions. [2022-11-16 12:23:57,977 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5477 transitions. Word has length 106 [2022-11-16 12:23:57,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:57,978 INFO L495 AbstractCegarLoop]: Abstraction has 3804 states and 5477 transitions. [2022-11-16 12:23:57,978 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) [2022-11-16 12:23:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5477 transitions. [2022-11-16 12:23:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 12:23:57,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:57,986 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] [2022-11-16 12:23:58,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:58,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:23:58,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash -329013054, now seen corresponding path program 1 times [2022-11-16 12:23:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:23:58,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949210656] [2022-11-16 12:23:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:58,212 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 [2022-11-16 12:23:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:23:58,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:23:58,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:24:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:24:28,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:24:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:24:57,635 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 12:24:57,635 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:24:57,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:24:57,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:24:57,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:24:57,858 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:24:57,862 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:24:58,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:24:58 BoogieIcfgContainer [2022-11-16 12:24:58,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:24:58,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:24:58,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:24:58,030 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:24:58,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:56" (3/4) ... [2022-11-16 12:24:58,034 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:24:58,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:24:58,035 INFO L158 Benchmark]: Toolchain (without parser) took 154666.12ms. Allocated memory was 71.3MB in the beginning and 528.5MB in the end (delta: 457.2MB). Free memory was 39.6MB in the beginning and 134.0MB in the end (delta: -94.4MB). Peak memory consumption was 361.1MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,035 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 71.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:24:58,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3794.97ms. Allocated memory was 71.3MB in the beginning and 186.6MB in the end (delta: 115.3MB). Free memory was 39.5MB in the beginning and 72.8MB in the end (delta: -33.4MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 379.98ms. Allocated memory is still 186.6MB. Free memory was 72.8MB in the beginning and 112.3MB in the end (delta: -39.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,037 INFO L158 Benchmark]: Boogie Preprocessor took 227.95ms. Allocated memory is still 186.6MB. Free memory was 112.3MB in the beginning and 85.8MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,037 INFO L158 Benchmark]: RCFGBuilder took 28226.32ms. Allocated memory was 186.6MB in the beginning and 312.5MB in the end (delta: 125.8MB). Free memory was 84.8MB in the beginning and 136.1MB in the end (delta: -51.3MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,039 INFO L158 Benchmark]: TraceAbstraction took 122024.97ms. Allocated memory was 312.5MB in the beginning and 528.5MB in the end (delta: 216.0MB). Free memory was 136.1MB in the beginning and 134.0MB in the end (delta: 2.1MB). Peak memory consumption was 217.1MB. Max. memory is 16.1GB. [2022-11-16 12:24:58,039 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 528.5MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:24:58,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 71.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3794.97ms. Allocated memory was 71.3MB in the beginning and 186.6MB in the end (delta: 115.3MB). Free memory was 39.5MB in the beginning and 72.8MB in the end (delta: -33.4MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 379.98ms. Allocated memory is still 186.6MB. Free memory was 72.8MB in the beginning and 112.3MB in the end (delta: -39.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 227.95ms. Allocated memory is still 186.6MB. Free memory was 112.3MB in the beginning and 85.8MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 28226.32ms. Allocated memory was 186.6MB in the beginning and 312.5MB in the end (delta: 125.8MB). Free memory was 84.8MB in the beginning and 136.1MB in the end (delta: -51.3MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * TraceAbstraction took 122024.97ms. Allocated memory was 312.5MB in the beginning and 528.5MB in the end (delta: 216.0MB). Free memory was 136.1MB in the beginning and 134.0MB in the end (delta: 2.1MB). Peak memory consumption was 217.1MB. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 528.5MB. Free memory is still 134.0MB. 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: [L6173] static atomic_t channel_count = {0}; [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}; [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}; [L10620] int LDV_IN_INTERRUPT ; [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}; [L6174] static int ppp_net_id ; [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}; [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}}; [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}; [L10813] int ldv_module_refcounter = 1; [L6207] static struct class *ppp_class ; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L6172] static atomic_t ppp_unit_count = {0}; [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}}}}; VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, fops={65:0}, fops={65:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___1=2147483648] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, 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={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967282, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967282, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967274, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967274, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6809] EXPR pf->kind VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967274, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, pf->kind=-2147483647, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L6809] COND FALSE !((unsigned int )pf->kind == 1U) [L6821] CALL, EXPR atomic_long_read(& file->f_count) VAL [__this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, l={0:671088474}, l={0:671088474}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp=0, v={0:671088474}] [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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967274, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, cmd=1074033724, code={111:0}, code___0={-9223371968135298963:0}, compressor_list={68:0}, compressor_list_lock={70:0}, err=4294967274, file={0:671088362}, file={0:671088362}, idle={109:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={68719476845:0}, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, p={0:71}, pf={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, tmp___2=0] [L6825] CALL ppp_release((struct inode *)0, file) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, pf={0:671088639}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={0:671088639}, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, pf={0:671088639}, ppp={0:671088639}, ppp->owner={0:-9223372036854775808}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, v={0:671088903}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, v={0:671088903}, v={0:671088903}] [L6357] RET, EXPR atomic_dec_and_test(& pf->refcnt) VAL [\old(ldv_module_refcounter)=1, __mptr={0:671088639}, __this_module={0:0}, atomic_dec_and_test(& pf->refcnt)=1, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, pf={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={0:671088639}, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, pf={0:671088639}, pf->kind=1, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={0:671088639}, __mptr___0={0:671088639}, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, file={0:671088362}, file={0:671088362}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, pf={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, 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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10292] FCALL atomic_dec(& ppp_unit_count) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10294] EXPR ppp->file.dead VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp->file.dead=-2147483648, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10294] COND FALSE !(ppp->file.dead == 0) [L10301] EXPR ppp->n_channels VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp->n_channels=0, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:2199023255552}, xstate={0:-9223301668110073856}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:2199023255552}, xstate={0:-9223301668110073856}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:2199023255552}, xstate={0:-9223301668110073856}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:2199023255552}, xcomp->comp_free={9223372036854775806:12}, xstate={0:-9223301668110073856}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp={0:671088639}, ppp={0:671088639}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:2199023255552}, xcomp->comp_free={9223372036854775806:12}, xstate={0:-9223301668110073856}] [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={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223370937343148032}, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223370937343148032}, module={0:-9223370937343148032}, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223370937343148032}, module={0:-9223370937343148032}, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={0:0}, channel_count={60:0}, compressor_list={68:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={67:0}, npindex_to_proto={63:0}, ppp_class={0:0}, ppp_device_fops={65:0}, ppp_mutex={66:0}, ppp_net_id={64:0}, ppp_net_ops={62:0}, ppp_netdev_ops={61:0}, ppp_unit_count={69:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 94 procedures, 1432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 121.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 48.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 2641 SdHoareTripleChecker+Valid, 46.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2487 mSDsluCounter, 24037 SdHoareTripleChecker+Invalid, 45.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 15391 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 8646 mSDtfsCounter, 468 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3804occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 32.7s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 277 ConstructedInterpolants, 1 QuantifiedInterpolants, 491 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3665 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 24/24 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 [2022-11-16 12:24:58,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fde2c67-4afe-4f8e-94c4-2a051cb9cbd1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample