./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 8393723b 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 18:42:13,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:42:13,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:42:13,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:42:13,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:42:13,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:42:13,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:42:13,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:42:13,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:42:13,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:42:13,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:42:13,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:42:13,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:42:13,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:42:13,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:42:13,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:42:13,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:42:13,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:42:13,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:42:13,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:42:13,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:42:13,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:42:13,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:42:13,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:42:13,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:42:13,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:42:13,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:42:13,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:42:13,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:42:13,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:42:13,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:42:13,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:42:13,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:42:13,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:42:13,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:42:13,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:42:13,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:42:13,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:42:13,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:42:13,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:42:13,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:42:13,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:42:13,996 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:42:13,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:42:13,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:42:13,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:42:13,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:42:13,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:42:14,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:42:14,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:42:14,001 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:42:14,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:42:14,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:42:14,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:42:14,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:42:14,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:42:14,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:42:14,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:42:14,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:42:14,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:42:14,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:42:14,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:42:14,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:42:14,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:14,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:42:14,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:42:14,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:42:14,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:42:14,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:42:14,007 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:42:14,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:42:14,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:42:14,007 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-18 18:42:14,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:42:14,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:42:14,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:42:14,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:42:14,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:42:14,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:42:14,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/1ce01e44c/6c28826c7402463785797409ebab02b6/FLAGa84f83f29 [2022-11-18 18:42:15,382 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:42:15,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:42:15,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/1ce01e44c/6c28826c7402463785797409ebab02b6/FLAGa84f83f29 [2022-11-18 18:42:15,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/1ce01e44c/6c28826c7402463785797409ebab02b6 [2022-11-18 18:42:15,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:42:15,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:42:15,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:15,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:42:15,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:42:15,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:15" (1/1) ... [2022-11-18 18:42:15,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5018ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:15, skipping insertion in model container [2022-11-18 18:42:15,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:15" (1/1) ... [2022-11-18 18:42:15,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:42:16,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:18,038 WARN L234 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-18 18:42:18,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:18,155 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:42:18,639 WARN L234 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-18 18:42:18,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:18,910 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:42:18,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18 WrapperNode [2022-11-18 18:42:18,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:18,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:18,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:42:18,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:42:18,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,251 INFO L138 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 144, calls inlined = 114, statements flattened = 4248 [2022-11-18 18:42:19,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:19,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:42:19,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:42:19,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:42:19,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:42:19,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:42:19,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:42:19,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:42:19,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (1/1) ... [2022-11-18 18:42:19,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:19,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:19,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:42:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-18 18:42:19,649 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-18 18:42:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-18 18:42:19,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-18 18:42:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-18 18:42:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-18 18:42:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-18 18:42:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-18 18:42:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 18:42:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-18 18:42:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-18 18:42:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:42:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-18 18:42:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-18 18:42:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:42:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 18:42:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 18:42:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-18 18:42:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-18 18:42:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-18 18:42:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-18 18:42:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-18 18:42:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-18 18:42:19,653 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-18 18:42:19,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-18 18:42:19,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 18:42:19,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 18:42:19,653 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-18 18:42:19,653 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-18 18:42:19,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 18:42:19,654 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 18:42:19,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:42:19,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:42:19,654 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-18 18:42:19,654 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-18 18:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:42:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-18 18:42:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-18 18:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-18 18:42:19,656 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-18 18:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:42:19,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-18 18:42:19,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-18 18:42:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-18 18:42:19,657 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-18 18:42:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-18 18:42:19,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-18 18:42:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 18:42:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 18:42:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:42:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:42:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-18 18:42:19,659 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-18 18:42:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:42:19,660 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:42:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-18 18:42:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-18 18:42:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-18 18:42:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-18 18:42:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-18 18:42:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-18 18:42:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-18 18:42:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-18 18:42:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:42:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:42:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:42:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-18 18:42:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-18 18:42:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:42:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-18 18:42:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-18 18:42:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:42:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:42:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-18 18:42:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-18 18:42:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:42:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:42:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-18 18:42:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-18 18:42:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-18 18:42:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-18 18:42:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 18:42:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 18:42:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 18:42:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 18:42:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:42:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:42:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-18 18:42:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-18 18:42:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-18 18:42:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-18 18:42:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 18:42:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 18:42:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:42:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:42:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:42:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:42:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-18 18:42:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-18 18:42:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-18 18:42:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-18 18:42:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:42:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:42:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 18:42:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 18:42:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:42:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 18:42:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 18:42:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-18 18:42:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-18 18:42:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:42:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:42:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-18 18:42:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-18 18:42:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:42:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-18 18:42:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-18 18:42:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 18:42:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 18:42:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-18 18:42:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-18 18:42:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:42:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:42:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:42:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-18 18:42:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-18 18:42:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-18 18:42:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-18 18:42:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-18 18:42:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-18 18:42:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-18 18:42:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-18 18:42:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-18 18:42:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-18 18:42:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-18 18:42:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-18 18:42:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:42:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:42:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-18 18:42:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-18 18:42:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-18 18:42:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-18 18:42:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:42:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-18 18:42:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-18 18:42:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 18:42:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 18:42:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-18 18:42:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-18 18:42:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-18 18:42:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-18 18:42:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-18 18:42:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-18 18:42:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:42:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-18 18:42:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-18 18:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-18 18:42:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-18 18:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:42:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-18 18:42:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-18 18:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:42:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-18 18:42:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-18 18:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-18 18:42:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-18 18:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-18 18:42:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-18 18:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 18:42:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 18:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-18 18:42:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-18 18:42:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-18 18:42:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-18 18:42:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 18:42:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 18:42:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 18:42:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 18:42:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-18 18:42:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-18 18:42:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 18:42:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 18:42:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-18 18:42:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-18 18:42:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 18:42:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 18:42:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-18 18:42:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-18 18:42:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-18 18:42:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-18 18:42:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-18 18:42:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-18 18:42:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:42:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-18 18:42:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-18 18:42:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:42:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:42:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:42:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:42:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 18:42:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 18:42:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 18:42:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 18:42:20,539 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:42:20,549 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:42:21,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-18 18:42:21,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-18 18:42:22,347 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:42:22,351 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:42:22,353 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:42:23,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2022-11-18 18:42:23,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2022-11-18 18:42:23,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2022-11-18 18:42:23,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume !false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume !false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2022-11-18 18:42:23,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-18 18:42:23,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume !false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##143: assume false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-11-18 18:42:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-11-18 18:42:23,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-11-18 18:42:23,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-11-18 18:42:23,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-18 18:42:23,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-18 18:42:23,311 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:42:23,317 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:42:24,410 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 [2022-11-18 18:42:24,410 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; [2022-11-18 18:42:24,410 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; [2022-11-18 18:42:24,410 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 [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume !false; [2022-11-18 18:42:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume false; [2022-11-18 18:42:24,551 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:42:24,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:42:24,580 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-18 18:42:24,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:24 BoogieIcfgContainer [2022-11-18 18:42:24,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:42:24,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:42:24,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:42:24,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:42:24,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:42:15" (1/3) ... [2022-11-18 18:42:24,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b4dcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:24, skipping insertion in model container [2022-11-18 18:42:24,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:18" (2/3) ... [2022-11-18 18:42:24,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b4dcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:42:24, skipping insertion in model container [2022-11-18 18:42:24,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:24" (3/3) ... [2022-11-18 18:42:24,596 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:42:24,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:42:24,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:42:24,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:42:24,742 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;@22ab69ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:42:24,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:42:24,754 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) [2022-11-18 18:42:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:42:24,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:24,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:24,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:24,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:24,772 INFO L85 PathProgramCache]: Analyzing trace with hash 910365185, now seen corresponding path program 1 times [2022-11-18 18:42:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435943862] [2022-11-18 18:42:24,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:24,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:42:25,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:25,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435943862] [2022-11-18 18:42:25,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435943862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:25,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:25,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:42:25,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320548429] [2022-11-18 18:42:25,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:25,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:42:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:25,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:42:25,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:42:25,354 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) [2022-11-18 18:42:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:25,831 INFO L93 Difference]: Finished difference Result 4325 states and 6262 transitions. [2022-11-18 18:42:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:42:25,834 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 [2022-11-18 18:42:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:25,900 INFO L225 Difference]: With dead ends: 4325 [2022-11-18 18:42:25,900 INFO L226 Difference]: Without dead ends: 2854 [2022-11-18 18:42:25,921 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 [2022-11-18 18:42:25,925 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 [2022-11-18 18:42:25,927 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] [2022-11-18 18:42:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-11-18 18:42:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2851. [2022-11-18 18:42:26,253 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) [2022-11-18 18:42:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3979 transitions. [2022-11-18 18:42:26,277 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3979 transitions. Word has length 12 [2022-11-18 18:42:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:26,278 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 3979 transitions. [2022-11-18 18:42:26,278 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) [2022-11-18 18:42:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3979 transitions. [2022-11-18 18:42:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 18:42:26,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:26,290 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] [2022-11-18 18:42:26,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:42:26,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:26,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1933548938, now seen corresponding path program 1 times [2022-11-18 18:42:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:26,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366197771] [2022-11-18 18:42:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:42:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 18:42:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 18:42:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:42:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:42:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:42:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 18:42:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:26,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366197771] [2022-11-18 18:42:26,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366197771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:26,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:26,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:26,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243046458] [2022-11-18 18:42:26,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:26,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:42:26,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:26,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:42:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:26,757 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) [2022-11-18 18:42:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:32,288 INFO L93 Difference]: Finished difference Result 6310 states and 8940 transitions. [2022-11-18 18:42:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:42:32,289 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 [2022-11-18 18:42:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:32,315 INFO L225 Difference]: With dead ends: 6310 [2022-11-18 18:42:32,316 INFO L226 Difference]: Without dead ends: 3486 [2022-11-18 18:42:32,327 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 [2022-11-18 18:42:32,328 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 938 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:32,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 3328 Invalid, 2303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [384 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-18 18:42:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2022-11-18 18:42:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 3130. [2022-11-18 18:42:32,529 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) [2022-11-18 18:42:32,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4404 transitions. [2022-11-18 18:42:32,554 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4404 transitions. Word has length 74 [2022-11-18 18:42:32,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:32,556 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4404 transitions. [2022-11-18 18:42:32,556 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) [2022-11-18 18:42:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4404 transitions. [2022-11-18 18:42:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 18:42:32,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:32,570 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] [2022-11-18 18:42:32,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:42:32,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1760573988, now seen corresponding path program 1 times [2022-11-18 18:42:32,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:32,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896612869] [2022-11-18 18:42:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:42:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 18:42:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:42:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 18:42:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:42:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:42:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:42:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 18:42:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 18:42:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:33,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:33,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896612869] [2022-11-18 18:42:33,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896612869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:33,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:33,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:42:33,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48655458] [2022-11-18 18:42:33,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:33,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:42:33,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:33,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:42:33,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:42:33,327 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) [2022-11-18 18:42:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:39,906 INFO L93 Difference]: Finished difference Result 6576 states and 9337 transitions. [2022-11-18 18:42:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:42:39,907 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 [2022-11-18 18:42:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:39,937 INFO L225 Difference]: With dead ends: 6576 [2022-11-18 18:42:39,937 INFO L226 Difference]: Without dead ends: 3470 [2022-11-18 18:42:39,956 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 [2022-11-18 18:42:39,962 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 767 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 3517 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 6.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:39,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 5847 Invalid, 3862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [345 Valid, 3517 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-18 18:42:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-18 18:42:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3130. [2022-11-18 18:42:40,121 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) [2022-11-18 18:42:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4402 transitions. [2022-11-18 18:42:40,193 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4402 transitions. Word has length 92 [2022-11-18 18:42:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:40,193 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4402 transitions. [2022-11-18 18:42:40,193 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) [2022-11-18 18:42:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4402 transitions. [2022-11-18 18:42:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-18 18:42:40,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:40,201 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] [2022-11-18 18:42:40,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:42:40,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:40,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1504245712, now seen corresponding path program 1 times [2022-11-18 18:42:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:40,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193549351] [2022-11-18 18:42:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:42:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 18:42:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 18:42:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:42:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:42:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:42:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:42:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:42:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:42:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:42:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:42:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:42:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:42:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 18:42:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:42:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-18 18:42:40,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:40,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193549351] [2022-11-18 18:42:40,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193549351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:40,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:40,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:42:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706012522] [2022-11-18 18:42:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:40,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:42:40,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:42:40,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:42:40,575 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) [2022-11-18 18:42:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:46,842 INFO L93 Difference]: Finished difference Result 7036 states and 10191 transitions. [2022-11-18 18:42:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:42:46,843 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 [2022-11-18 18:42:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:46,869 INFO L225 Difference]: With dead ends: 7036 [2022-11-18 18:42:46,869 INFO L226 Difference]: Without dead ends: 3934 [2022-11-18 18:42:46,885 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 [2022-11-18 18:42:46,886 INFO L413 NwaCegarLoop]: 1334 mSDtfsCounter, 1587 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 2880 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 2880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:46,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 3827 Invalid, 3826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [946 Valid, 2880 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-18 18:42:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-11-18 18:42:47,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3132. [2022-11-18 18:42:47,048 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) [2022-11-18 18:42:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4404 transitions. [2022-11-18 18:42:47,072 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4404 transitions. Word has length 128 [2022-11-18 18:42:47,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:47,074 INFO L495 AbstractCegarLoop]: Abstraction has 3132 states and 4404 transitions. [2022-11-18 18:42:47,075 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) [2022-11-18 18:42:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4404 transitions. [2022-11-18 18:42:47,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 18:42:47,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:47,087 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] [2022-11-18 18:42:47,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:42:47,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash -333167602, now seen corresponding path program 1 times [2022-11-18 18:42:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:47,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839475741] [2022-11-18 18:42:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:42:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 18:42:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 18:42:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:42:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 18:42:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:42:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:42:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:42:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:42:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:42:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:42:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:47,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839475741] [2022-11-18 18:42:47,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839475741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:42:47,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388897952] [2022-11-18 18:42:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:47,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:42:47,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:47,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:42:47,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:42:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:48,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:42:48,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:48,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:42:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:48,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388897952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:42:48,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:42:48,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2022-11-18 18:42:48,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270096992] [2022-11-18 18:42:48,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:42:48,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:42:48,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:48,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:42:48,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:42:48,649 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) [2022-11-18 18:42:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:56,602 INFO L93 Difference]: Finished difference Result 7906 states and 11544 transitions. [2022-11-18 18:42:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:42:56,603 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 [2022-11-18 18:42:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:56,637 INFO L225 Difference]: With dead ends: 7906 [2022-11-18 18:42:56,638 INFO L226 Difference]: Without dead ends: 4802 [2022-11-18 18:42:56,651 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 [2022-11-18 18:42:56,652 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 2523 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 4354 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2829 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 5627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 4354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:56,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2829 Valid, 5370 Invalid, 5627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1273 Valid, 4354 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-18 18:42:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2022-11-18 18:42:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 3972. [2022-11-18 18:42:56,885 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) [2022-11-18 18:42:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 5700 transitions. [2022-11-18 18:42:56,909 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 5700 transitions. Word has length 107 [2022-11-18 18:42:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:56,910 INFO L495 AbstractCegarLoop]: Abstraction has 3972 states and 5700 transitions. [2022-11-18 18:42:56,911 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) [2022-11-18 18:42:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 5700 transitions. [2022-11-18 18:42:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 18:42:56,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:56,920 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] [2022-11-18 18:42:56,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:57,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:42:57,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash 990378418, now seen corresponding path program 1 times [2022-11-18 18:42:57,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:57,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781069375] [2022-11-18 18:42:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:57,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:42:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 18:42:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:42:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 18:42:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 18:42:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:42:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:42:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:42:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:42:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:42:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:42:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:42:58,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:58,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781069375] [2022-11-18 18:42:58,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781069375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:58,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:58,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:42:58,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367682075] [2022-11-18 18:42:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:58,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:42:58,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:42:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:42:58,204 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) [2022-11-18 18:43:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:09,220 INFO L93 Difference]: Finished difference Result 8742 states and 12898 transitions. [2022-11-18 18:43:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:43:09,221 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 [2022-11-18 18:43:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:09,253 INFO L225 Difference]: With dead ends: 8742 [2022-11-18 18:43:09,254 INFO L226 Difference]: Without dead ends: 4798 [2022-11-18 18:43:09,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:43:09,275 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1562 mSDsluCounter, 4509 mSDsCounter, 0 mSdLazyCounter, 5438 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5897 SdHoareTripleChecker+Invalid, 6376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 5438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:09,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 5897 Invalid, 6376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [938 Valid, 5438 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-18 18:43:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2022-11-18 18:43:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 3980. [2022-11-18 18:43:09,496 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) [2022-11-18 18:43:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5712 transitions. [2022-11-18 18:43:09,516 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5712 transitions. Word has length 107 [2022-11-18 18:43:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:09,517 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 5712 transitions. [2022-11-18 18:43:09,517 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) [2022-11-18 18:43:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5712 transitions. [2022-11-18 18:43:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-18 18:43:09,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:09,526 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] [2022-11-18 18:43:09,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:43:09,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash 975880111, now seen corresponding path program 1 times [2022-11-18 18:43:09,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:09,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508349762] [2022-11-18 18:43:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:09,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:09,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:10,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:10,492 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:43:10,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:43:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:43:10,500 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:10,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:43:10,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:43:10 BoogieIcfgContainer [2022-11-18 18:43:10,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:43:10,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:43:10,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:43:10,669 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:43:10,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:24" (3/4) ... [2022-11-18 18:43:10,673 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:43:10,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:43:10,676 INFO L158 Benchmark]: Toolchain (without parser) took 54841.65ms. Allocated memory was 125.8MB in the beginning and 775.9MB in the end (delta: 650.1MB). Free memory was 79.9MB in the beginning and 447.3MB in the end (delta: -367.3MB). Peak memory consumption was 282.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,676 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:10,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3073.39ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 79.7MB in the beginning and 98.2MB in the end (delta: -18.5MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 339.91ms. Allocated memory is still 174.1MB. Free memory was 98.2MB in the beginning and 74.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,677 INFO L158 Benchmark]: Boogie Preprocessor took 298.90ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 74.0MB in the beginning and 144.5MB in the end (delta: -70.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,680 INFO L158 Benchmark]: RCFGBuilder took 5033.80ms. Allocated memory was 230.7MB in the beginning and 373.3MB in the end (delta: 142.6MB). Free memory was 144.5MB in the beginning and 274.1MB in the end (delta: -129.6MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,681 INFO L158 Benchmark]: TraceAbstraction took 46079.20ms. Allocated memory was 373.3MB in the beginning and 775.9MB in the end (delta: 402.7MB). Free memory was 273.0MB in the beginning and 448.3MB in the end (delta: -175.3MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. [2022-11-18 18:43:10,681 INFO L158 Benchmark]: Witness Printer took 6.46ms. Allocated memory is still 775.9MB. Free memory was 448.3MB in the beginning and 447.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:10,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3073.39ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 79.7MB in the beginning and 98.2MB in the end (delta: -18.5MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 339.91ms. Allocated memory is still 174.1MB. Free memory was 98.2MB in the beginning and 74.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 298.90ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 74.0MB in the beginning and 144.5MB in the end (delta: -70.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * RCFGBuilder took 5033.80ms. Allocated memory was 230.7MB in the beginning and 373.3MB in the end (delta: 142.6MB). Free memory was 144.5MB in the beginning and 274.1MB in the end (delta: -129.6MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. * TraceAbstraction took 46079.20ms. Allocated memory was 373.3MB in the beginning and 775.9MB in the end (delta: 402.7MB). Free memory was 273.0MB in the beginning and 448.3MB in the end (delta: -175.3MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. * Witness Printer took 6.46ms. Allocated memory is still 775.9MB. Free memory was 448.3MB in the beginning and 447.3MB in the end (delta: 1.0MB). 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, 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: 45.8s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 38.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10253 SdHoareTripleChecker+Valid, 35.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9389 mSDsluCounter, 28650 SdHoareTripleChecker+Invalid, 31.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19136 mSDsCounter, 3888 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18116 IncrementalHoareTripleChecker+Invalid, 22004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3888 mSolverCounterUnsat, 9514 mSDtfsCounter, 18116 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: 1.5s 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 [2022-11-18 18:43:10,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 18:43:13,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:43:13,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:43:13,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:43:13,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:43:13,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:43:13,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:43:13,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:43:13,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:43:13,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:43:13,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:43:13,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:43:13,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:43:13,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:43:13,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:43:13,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:43:13,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:43:13,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:43:13,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:43:13,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:43:13,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:43:13,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:43:13,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:43:13,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:43:13,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:43:13,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:43:13,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:43:13,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:43:13,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:43:13,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:43:13,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:43:13,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:43:13,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:43:13,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:43:13,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:43:13,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:43:13,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:43:13,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:43:13,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:43:13,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:43:13,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:43:13,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:43:13,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:43:13,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:43:13,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:43:13,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:43:13,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:43:13,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:43:13,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:43:13,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:43:13,285 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:43:13,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:43:13,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:43:13,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:43:13,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:43:13,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:43:13,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:43:13,287 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:43:13,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:43:13,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:43:13,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:43:13,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:43:13,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:43:13,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:43:13,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:43:13,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:43:13,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:43:13,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:43:13,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:43:13,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:43:13,291 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-18 18:43:13,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:43:13,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:43:13,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:43:13,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:43:13,720 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:43:13,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:43:13,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/a6ee8221e/499caf58f9c2486993f1faba4e28f7c9/FLAGfc426647a [2022-11-18 18:43:14,835 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:43:14,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:43:14,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/a6ee8221e/499caf58f9c2486993f1faba4e28f7c9/FLAGfc426647a [2022-11-18 18:43:15,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/data/a6ee8221e/499caf58f9c2486993f1faba4e28f7c9 [2022-11-18 18:43:15,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:43:15,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:43:15,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:15,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:43:15,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:43:15,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:15" (1/1) ... [2022-11-18 18:43:15,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4994242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:15, skipping insertion in model container [2022-11-18 18:43:15,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:15" (1/1) ... [2022-11-18 18:43:15,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:43:15,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:43:17,531 WARN L234 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-18 18:43:17,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:17,663 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:43:17,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:43:18,170 WARN L234 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-18 18:43:18,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:18,208 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:43:18,628 WARN L234 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_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-18 18:43:18,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:19,048 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:43:19,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19 WrapperNode [2022-11-18 18:43:19,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:19,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:19,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:43:19,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:43:19,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,325 INFO L138 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 147, calls inlined = 117, statements flattened = 4122 [2022-11-18 18:43:19,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:19,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:43:19,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:43:19,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:43:19,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:43:19,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:43:19,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:43:19,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:43:19,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (1/1) ... [2022-11-18 18:43:19,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:43:19,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:43:19,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:43:19,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:43:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-18 18:43:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-18 18:43:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 18:43:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 18:43:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-18 18:43:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-18 18:43:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-18 18:43:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-18 18:43:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 18:43:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-18 18:43:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-18 18:43:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 18:43:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:43:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-18 18:43:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-18 18:43:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-18 18:43:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:43:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 18:43:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 18:43:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-18 18:43:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-18 18:43:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-18 18:43:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-18 18:43:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-18 18:43:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-18 18:43:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-18 18:43:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-18 18:43:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 18:43:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 18:43:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-18 18:43:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-18 18:43:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 18:43:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 18:43:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:43:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:43:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-18 18:43:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-18 18:43:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:43:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:43:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-18 18:43:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-18 18:43:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-18 18:43:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-18 18:43:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-18 18:43:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-18 18:43:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:43:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:43:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-18 18:43:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-18 18:43:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-18 18:43:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-18 18:43:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-18 18:43:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-18 18:43:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 18:43:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 18:43:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:43:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:43:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-18 18:43:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-18 18:43:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:43:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:43:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-18 18:43:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-18 18:43:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-18 18:43:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-18 18:43:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-18 18:43:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-18 18:43:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-18 18:43:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-18 18:43:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:43:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:43:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:43:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-18 18:43:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-18 18:43:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:43:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-18 18:43:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-18 18:43:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:43:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:43:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 18:43:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 18:43:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-18 18:43:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-18 18:43:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-18 18:43:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:43:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 18:43:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:43:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-18 18:43:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-18 18:43:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-18 18:43:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-18 18:43:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:43:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 18:43:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 18:43:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 18:43:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 18:43:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 18:43:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 18:43:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:43:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:43:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-18 18:43:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-18 18:43:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-18 18:43:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-18 18:43:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 18:43:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 18:43:19,872 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:43:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:43:19,872 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:43:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:43:19,873 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-18 18:43:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-18 18:43:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-18 18:43:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-18 18:43:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:43:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:43:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 18:43:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 18:43:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 18:43:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 18:43:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-18 18:43:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-18 18:43:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:43:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:43:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-18 18:43:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-18 18:43:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-18 18:43:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-18 18:43:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 18:43:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 18:43:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-18 18:43:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-18 18:43:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:43:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:43:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-18 18:43:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-18 18:43:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-18 18:43:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-18 18:43:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-18 18:43:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-18 18:43:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-18 18:43:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-18 18:43:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-18 18:43:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-18 18:43:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-18 18:43:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-18 18:43:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:43:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:43:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-18 18:43:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-18 18:43:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-18 18:43:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-18 18:43:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-18 18:43:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-18 18:43:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 18:43:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 18:43:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-18 18:43:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-18 18:43:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-18 18:43:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-18 18:43:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-18 18:43:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-18 18:43:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 18:43:19,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 18:43:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-18 18:43:19,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-18 18:43:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-18 18:43:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-18 18:43:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:43:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-18 18:43:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-18 18:43:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-18 18:43:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-18 18:43:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:43:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:43:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:43:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:43:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:43:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-18 18:43:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-18 18:43:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:43:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:43:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-18 18:43:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-18 18:43:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-18 18:43:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-18 18:43:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-18 18:43:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-18 18:43:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-18 18:43:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 18:43:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 18:43:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-18 18:43:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-18 18:43:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-18 18:43:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-18 18:43:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 18:43:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 18:43:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 18:43:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 18:43:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-18 18:43:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-18 18:43:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 18:43:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 18:43:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-18 18:43:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-18 18:43:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-18 18:43:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-18 18:43:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-18 18:43:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-18 18:43:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-18 18:43:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:43:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:43:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:43:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:43:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 18:43:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 18:43:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 18:43:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 18:43:20,781 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:43:20,792 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:43:24,804 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-18 18:43:24,804 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-18 18:43:35,882 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:43:35,889 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:43:35,931 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:43:35,933 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:43:35,942 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 18:43:47,887 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 [2022-11-18 18:43:47,888 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; [2022-11-18 18:43:47,888 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume !false; [2022-11-18 18:43:47,888 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume false; [2022-11-18 18:43:47,888 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; [2022-11-18 18:43:47,888 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 [2022-11-18 18:43:47,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume !false; [2022-11-18 18:43:47,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##260: assume false; [2022-11-18 18:43:47,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2022-11-18 18:43:47,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2022-11-18 18:43:47,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-18 18:43:47,891 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-18 18:43:47,897 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-11-18 18:43:47,897 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-11-18 18:43:47,897 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume !false; [2022-11-18 18:43:47,898 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##205: assume false; [2022-11-18 18:43:47,898 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2022-11-18 18:43:47,898 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2022-11-18 18:43:47,898 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##317: assume false; [2022-11-18 18:43:47,898 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume !false; [2022-11-18 18:43:47,900 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume !false; [2022-11-18 18:43:47,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume false; [2022-11-18 18:43:47,905 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume !false; [2022-11-18 18:43:47,906 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume false; [2022-11-18 18:43:47,906 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-18 18:43:47,906 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-18 18:43:47,907 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-18 18:43:47,907 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-18 18:43:47,907 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-11-18 18:43:47,908 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-11-18 18:43:47,908 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-18 18:43:47,908 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-11-18 18:43:47,908 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-18 18:43:47,909 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-11-18 18:43:47,909 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-11-18 18:43:47,909 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2022-11-18 18:43:47,910 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2022-11-18 18:43:47,910 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2022-11-18 18:43:47,914 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2022-11-18 18:43:47,915 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false; [2022-11-18 18:43:47,915 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false; [2022-11-18 18:43:47,915 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-11-18 18:43:47,915 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##367: assume !false; [2022-11-18 18:43:47,916 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume false; [2022-11-18 18:43:48,084 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:43:48,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:43:48,146 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-18 18:43:48,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:48 BoogieIcfgContainer [2022-11-18 18:43:48,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:43:48,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:43:48,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:43:48,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:43:48,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:43:15" (1/3) ... [2022-11-18 18:43:48,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550ac1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:48, skipping insertion in model container [2022-11-18 18:43:48,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:19" (2/3) ... [2022-11-18 18:43:48,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550ac1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:48, skipping insertion in model container [2022-11-18 18:43:48,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:48" (3/3) ... [2022-11-18 18:43:48,166 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-18 18:43:48,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:43:48,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:43:48,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:43:48,340 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;@527e0ce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:43:48,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:43:48,349 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) [2022-11-18 18:43:48,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:43:48,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:48,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:48,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2078505288, now seen corresponding path program 1 times [2022-11-18 18:43:48,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:48,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012096927] [2022-11-18 18:43:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:48,388 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 [2022-11-18 18:43:48,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:48,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 18:43:48,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:49,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:43:49,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:49,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:49,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:49,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012096927] [2022-11-18 18:43:49,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012096927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:49,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:49,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:43:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078008640] [2022-11-18 18:43:49,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:49,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:43:49,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:49,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:43:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:43:49,582 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) [2022-11-18 18:43:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:50,115 INFO L93 Difference]: Finished difference Result 4250 states and 6135 transitions. [2022-11-18 18:43:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:43:50,121 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 [2022-11-18 18:43:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:50,155 INFO L225 Difference]: With dead ends: 4250 [2022-11-18 18:43:50,155 INFO L226 Difference]: Without dead ends: 2804 [2022-11-18 18:43:50,172 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 [2022-11-18 18:43:50,175 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 [2022-11-18 18:43:50,177 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] [2022-11-18 18:43:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-11-18 18:43:50,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2801. [2022-11-18 18:43:50,475 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) [2022-11-18 18:43:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3908 transitions. [2022-11-18 18:43:50,503 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3908 transitions. Word has length 12 [2022-11-18 18:43:50,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:50,503 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3908 transitions. [2022-11-18 18:43:50,504 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) [2022-11-18 18:43:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3908 transitions. [2022-11-18 18:43:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 18:43:50,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:50,524 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] [2022-11-18 18:43:50,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 18:43:50,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:50,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:50,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:50,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1790442611, now seen corresponding path program 1 times [2022-11-18 18:43:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:50,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829246422] [2022-11-18 18:43:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:50,742 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 [2022-11-18 18:43:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:50,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 18:43:50,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:52,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:43:52,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:43:52,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:52,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829246422] [2022-11-18 18:43:52,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829246422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:52,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:52,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:43:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195676910] [2022-11-18 18:43:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:52,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:43:52,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:43:52,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:52,179 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) [2022-11-18 18:43:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:52,523 INFO L93 Difference]: Finished difference Result 5578 states and 7787 transitions. [2022-11-18 18:43:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:43:52,524 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 [2022-11-18 18:43:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:52,544 INFO L225 Difference]: With dead ends: 5578 [2022-11-18 18:43:52,544 INFO L226 Difference]: Without dead ends: 2801 [2022-11-18 18:43:52,555 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 [2022-11-18 18:43:52,556 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 [2022-11-18 18:43:52,557 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] [2022-11-18 18:43:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-18 18:43:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2022-11-18 18:43:52,679 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) [2022-11-18 18:43:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3906 transitions. [2022-11-18 18:43:52,700 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3906 transitions. Word has length 74 [2022-11-18 18:43:52,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:52,700 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3906 transitions. [2022-11-18 18:43:52,701 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) [2022-11-18 18:43:52,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3906 transitions. [2022-11-18 18:43:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 18:43:52,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:52,711 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] [2022-11-18 18:43:52,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:52,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:52,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1751657911, now seen corresponding path program 1 times [2022-11-18 18:43:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:52,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739111719] [2022-11-18 18:43:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:52,930 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 [2022-11-18 18:43:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:52,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 18:43:52,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:54,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:43:54,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:43:54,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:54,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:54,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739111719] [2022-11-18 18:43:54,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739111719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:54,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:54,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:43:54,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170820272] [2022-11-18 18:43:54,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:54,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:43:54,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:54,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:43:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:43:54,527 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) [2022-11-18 18:43:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:54,894 INFO L93 Difference]: Finished difference Result 6586 states and 9372 transitions. [2022-11-18 18:43:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:43:54,895 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 [2022-11-18 18:43:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:54,920 INFO L225 Difference]: With dead ends: 6586 [2022-11-18 18:43:54,920 INFO L226 Difference]: Without dead ends: 3812 [2022-11-18 18:43:54,932 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 [2022-11-18 18:43:54,936 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 [2022-11-18 18:43:54,938 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] [2022-11-18 18:43:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-11-18 18:43:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3796. [2022-11-18 18:43:55,137 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) [2022-11-18 18:43:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5465 transitions. [2022-11-18 18:43:55,163 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5465 transitions. Word has length 89 [2022-11-18 18:43:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:55,164 INFO L495 AbstractCegarLoop]: Abstraction has 3796 states and 5465 transitions. [2022-11-18 18:43:55,164 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) [2022-11-18 18:43:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5465 transitions. [2022-11-18 18:43:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-18 18:43:55,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:55,173 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] [2022-11-18 18:43:55,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:55,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:55,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1606886577, now seen corresponding path program 1 times [2022-11-18 18:43:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:55,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27148426] [2022-11-18 18:43:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:55,390 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 [2022-11-18 18:43:55,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:55,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 18:43:55,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:43:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:56,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:43:56,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:57,106 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 18:43:57,107 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 [2022-11-18 18:43:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 18:43:59,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:59,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27148426] [2022-11-18 18:43:59,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27148426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:59,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:59,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:43:59,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595072784] [2022-11-18 18:43:59,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:59,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:43:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:43:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:59,288 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) [2022-11-18 18:44:06,339 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 [] [2022-11-18 18:44:08,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:10,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:12,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:17,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:19,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:21,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:23,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:29,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:38,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:40,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:41,000 INFO L93 Difference]: Finished difference Result 7578 states and 10952 transitions. [2022-11-18 18:44:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:44:41,005 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 [2022-11-18 18:44:41,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:41,028 INFO L225 Difference]: With dead ends: 7578 [2022-11-18 18:44:41,028 INFO L226 Difference]: Without dead ends: 3810 [2022-11-18 18:44:41,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:44:41,046 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 4 mSDsluCounter, 5509 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7491 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:41,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7491 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 11 Unknown, 6 Unchecked, 39.4s Time] [2022-11-18 18:44:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-11-18 18:44:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3804. [2022-11-18 18:44:41,220 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) [2022-11-18 18:44:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5477 transitions. [2022-11-18 18:44:41,238 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5477 transitions. Word has length 106 [2022-11-18 18:44:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:41,239 INFO L495 AbstractCegarLoop]: Abstraction has 3804 states and 5477 transitions. [2022-11-18 18:44:41,239 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) [2022-11-18 18:44:41,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5477 transitions. [2022-11-18 18:44:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 18:44:41,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:41,251 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] [2022-11-18 18:44:41,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:44:41,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:44:41,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash -329013054, now seen corresponding path program 1 times [2022-11-18 18:44:41,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:41,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337823830] [2022-11-18 18:44:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:41,469 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 [2022-11-18 18:44:41,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:41,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 18:44:41,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:45:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:45:10,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:45:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:45:39,422 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 18:45:39,422 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:45:39,424 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:45:39,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:45:39,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:45:39,655 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 18:45:39,660 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:45:39,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:45:39 BoogieIcfgContainer [2022-11-18 18:45:39,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:45:39,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:45:39,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:45:39,900 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:45:39,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:48" (3/4) ... [2022-11-18 18:45:39,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:45:39,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:45:39,905 INFO L158 Benchmark]: Toolchain (without parser) took 144714.98ms. Allocated memory was 71.3MB in the beginning and 520.1MB in the end (delta: 448.8MB). Free memory was 41.3MB in the beginning and 336.7MB in the end (delta: -295.3MB). Peak memory consumption was 152.7MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,905 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:45:39,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3858.61ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 41.1MB in the beginning and 136.6MB in the end (delta: -95.5MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 274.97ms. Allocated memory is still 220.2MB. Free memory was 136.6MB in the beginning and 113.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,907 INFO L158 Benchmark]: Boogie Preprocessor took 352.32ms. Allocated memory is still 220.2MB. Free memory was 113.6MB in the beginning and 139.7MB in the end (delta: -26.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,907 INFO L158 Benchmark]: RCFGBuilder took 28474.45ms. Allocated memory was 220.2MB in the beginning and 432.0MB in the end (delta: 211.8MB). Free memory was 139.6MB in the beginning and 319.4MB in the end (delta: -179.8MB). Peak memory consumption was 215.0MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,908 INFO L158 Benchmark]: TraceAbstraction took 111742.81ms. Allocated memory was 432.0MB in the beginning and 520.1MB in the end (delta: 88.1MB). Free memory was 318.4MB in the beginning and 337.7MB in the end (delta: -19.4MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2022-11-18 18:45:39,908 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 520.1MB. Free memory was 337.7MB in the beginning and 336.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:45:39,910 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 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3858.61ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 41.1MB in the beginning and 136.6MB in the end (delta: -95.5MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 274.97ms. Allocated memory is still 220.2MB. Free memory was 136.6MB in the beginning and 113.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 352.32ms. Allocated memory is still 220.2MB. Free memory was 113.6MB in the beginning and 139.7MB in the end (delta: -26.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * RCFGBuilder took 28474.45ms. Allocated memory was 220.2MB in the beginning and 432.0MB in the end (delta: 211.8MB). Free memory was 139.6MB in the beginning and 319.4MB in the end (delta: -179.8MB). Peak memory consumption was 215.0MB. Max. memory is 16.1GB. * TraceAbstraction took 111742.81ms. Allocated memory was 432.0MB in the beginning and 520.1MB in the end (delta: 88.1MB). Free memory was 318.4MB in the beginning and 337.7MB in the end (delta: -19.4MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 520.1MB. Free memory was 337.7MB in the beginning and 336.7MB in the end (delta: 1.0MB). 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: 111.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 2641 SdHoareTripleChecker+Valid, 39.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2487 mSDsluCounter, 24039 SdHoareTripleChecker+Invalid, 38.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 6 IncrementalHoareTripleChecker+Unchecked, 15393 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 8646 mSDtfsCounter, 471 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6s 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: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 31.6s SatisfiabilityAnalysisTime, 3.2s 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 [2022-11-18 18:45:40,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aef06-fcd0-47c1-b8ea-6dc8a323bfb9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample