./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:18:07,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:18:07,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:18:07,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:18:07,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:18:07,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:18:07,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:18:07,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:18:07,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:18:07,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:18:07,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:18:07,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:18:07,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:18:07,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:18:07,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:18:07,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:18:07,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:18:07,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:18:07,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:18:07,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:18:07,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:18:07,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:18:07,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:18:07,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:18:07,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:18:07,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:18:07,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:18:07,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:18:07,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:18:07,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:18:07,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:18:07,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:18:07,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:18:07,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:18:07,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:18:07,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:18:07,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:18:07,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:18:07,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:18:07,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:18:07,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:18:07,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:18:07,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:18:07,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:18:07,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:18:07,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:18:07,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:18:07,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:18:07,892 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:18:07,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:18:07,892 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:18:07,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:18:07,893 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:18:07,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:18:07,894 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:18:07,894 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:18:07,895 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:18:07,895 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:18:07,895 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:18:07,895 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:18:07,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:18:07,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:18:07,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:18:07,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:18:07,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:18:07,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:18:07,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:18:07,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:18:07,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:18:07,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:18:07,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:18:07,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:07,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:18:07,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:18:07,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:18:07,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:18:07,902 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:18:07,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:18:07,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:18:07,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:18:07,903 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-19 07:18:08,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:18:08,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:18:08,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:18:08,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:18:08,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:18:08,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:18:08,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/28e21b3c1/50bb1c9babe540af883a044d696ad374/FLAG7bbf12faa [2022-11-19 07:18:09,211 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:18:09,211 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:18:09,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/28e21b3c1/50bb1c9babe540af883a044d696ad374/FLAG7bbf12faa [2022-11-19 07:18:09,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/28e21b3c1/50bb1c9babe540af883a044d696ad374 [2022-11-19 07:18:09,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:18:09,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:18:09,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:09,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:18:09,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:18:09,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:09" (1/1) ... [2022-11-19 07:18:09,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fd723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:09, skipping insertion in model container [2022-11-19 07:18:09,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:09" (1/1) ... [2022-11-19 07:18:09,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:18:09,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:12,154 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-19 07:18:12,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:12,291 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:18:12,693 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-19 07:18:12,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:13,006 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:18:13,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13 WrapperNode [2022-11-19 07:18:13,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:13,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:13,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:18:13,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:18:13,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,312 INFO L138 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 144, calls inlined = 114, statements flattened = 4248 [2022-11-19 07:18:13,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:13,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:18:13,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:18:13,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:18:13,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:18:13,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:18:13,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:18:13,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:18:13,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (1/1) ... [2022-11-19 07:18:13,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:13,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:13,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:18:13,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:18:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-19 07:18:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-19 07:18:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:18:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:18:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-19 07:18:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-19 07:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-19 07:18:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-19 07:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-19 07:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-19 07:18:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-19 07:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 07:18:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 07:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-19 07:18:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-19 07:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-19 07:18:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-19 07:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-19 07:18:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-19 07:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-19 07:18:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-19 07:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-19 07:18:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-19 07:18:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:18:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:18:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 07:18:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 07:18:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:18:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:18:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:18:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:18:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-19 07:18:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-19 07:18:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-19 07:18:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-19 07:18:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-19 07:18:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-19 07:18:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-19 07:18:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-19 07:18:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:18:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:18:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-19 07:18:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-19 07:18:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-19 07:18:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-19 07:18:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-19 07:18:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-19 07:18:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:18:13,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:18:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:18:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-19 07:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-19 07:18:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-19 07:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-19 07:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-19 07:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-19 07:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-19 07:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-19 07:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-19 07:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-19 07:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 07:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 07:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 07:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 07:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 07:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 07:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-19 07:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-19 07:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 07:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 07:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:18:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:18:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-19 07:18:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-19 07:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-19 07:18:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-19 07:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:18:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:18:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:18:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-19 07:18:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-19 07:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-19 07:18:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-19 07:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:18:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 07:18:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 07:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:18:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-19 07:18:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-19 07:18:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:18:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:18:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-19 07:18:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-19 07:18:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:18:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-19 07:18:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-19 07:18:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:18:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:18:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-19 07:18:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-19 07:18:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:18:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:18:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:18:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 07:18:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 07:18:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-19 07:18:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-19 07:18:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-19 07:18:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-19 07:18:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-19 07:18:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-19 07:18:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-19 07:18:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-19 07:18:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-19 07:18:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-19 07:18:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:18:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:18:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-19 07:18:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-19 07:18:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-19 07:18:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-19 07:18:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:18:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:18:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:18:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-19 07:18:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-19 07:18:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-19 07:18:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-19 07:18:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-19 07:18:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-19 07:18:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-19 07:18:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-19 07:18:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:18:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:18:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:18:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 07:18:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 07:18:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:18:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:18:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:18:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:18:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:18:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-19 07:18:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-19 07:18:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 07:18:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 07:18:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:18:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:18:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 07:18:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 07:18:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 07:18:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 07:18:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-19 07:18:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-19 07:18:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:18:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:18:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-19 07:18:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-19 07:18:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:18:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:18:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-19 07:18:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-19 07:18:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:18:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:18:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-19 07:18:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-19 07:18:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:18:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:18:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-19 07:18:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-19 07:18:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-19 07:18:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-19 07:18:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-19 07:18:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-19 07:18:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:18:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-19 07:18:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-19 07:18:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:18:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:18:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:18:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:18:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 07:18:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 07:18:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:18:13,724 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:18:14,454 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:18:14,461 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:18:15,235 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-19 07:18:15,235 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-19 07:18:16,313 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:18:16,317 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:18:16,319 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:18:16,921 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2022-11-19 07:18:16,921 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2022-11-19 07:18:16,922 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2022-11-19 07:18:16,922 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2022-11-19 07:18:16,922 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume !false; [2022-11-19 07:18:16,922 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume false; [2022-11-19 07:18:16,922 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume !false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2022-11-19 07:18:16,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2022-11-19 07:18:16,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-19 07:18:16,925 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-19 07:18:16,926 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-11-19 07:18:16,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume !false; [2022-11-19 07:18:16,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##143: assume false; [2022-11-19 07:18:16,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2022-11-19 07:18:16,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2022-11-19 07:18:16,931 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-11-19 07:18:16,931 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-11-19 07:18:16,931 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-11-19 07:18:16,931 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-11-19 07:18:16,931 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-11-19 07:18:16,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-19 07:18:16,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-19 07:18:17,121 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:18:17,125 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:18:18,214 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 [2022-11-19 07:18:18,214 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; [2022-11-19 07:18:18,214 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; [2022-11-19 07:18:18,214 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 [2022-11-19 07:18:18,214 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-19 07:18:18,214 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume !false; [2022-11-19 07:18:18,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume false; [2022-11-19 07:18:18,280 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:18:19,649 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:18:19,649 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-19 07:18:19,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:19 BoogieIcfgContainer [2022-11-19 07:18:19,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:18:19,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:18:19,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:18:19,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:18:19,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:09" (1/3) ... [2022-11-19 07:18:19,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a0182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:19, skipping insertion in model container [2022-11-19 07:18:19,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:13" (2/3) ... [2022-11-19 07:18:19,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a0182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:19, skipping insertion in model container [2022-11-19 07:18:19,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:19" (3/3) ... [2022-11-19 07:18:19,665 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:18:19,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:18:19,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:18:19,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:18:19,802 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24a88b48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:18:19,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:18:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 1129 states, 702 states have (on average 1.378917378917379) internal successors, (968), 737 states have internal predecessors, (968), 331 states have call successors, (331), 96 states have call predecessors, (331), 96 states have return successors, (331), 323 states have call predecessors, (331), 331 states have call successors, (331) [2022-11-19 07:18:19,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:18:19,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:19,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:19,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1719963197, now seen corresponding path program 1 times [2022-11-19 07:18:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:19,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076692302] [2022-11-19 07:18:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:20,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:20,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:20,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076692302] [2022-11-19 07:18:20,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076692302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:20,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:20,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:18:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468995243] [2022-11-19 07:18:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:20,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:20,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:20,466 INFO L87 Difference]: Start difference. First operand has 1129 states, 702 states have (on average 1.378917378917379) internal successors, (968), 737 states have internal predecessors, (968), 331 states have call successors, (331), 96 states have call predecessors, (331), 96 states have return successors, (331), 323 states have call predecessors, (331), 331 states have call successors, (331) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:22,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:24,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:27,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:18:27,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:27,990 INFO L93 Difference]: Finished difference Result 3285 states and 4797 transitions. [2022-11-19 07:18:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:27,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:18:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:28,023 INFO L225 Difference]: With dead ends: 3285 [2022-11-19 07:18:28,024 INFO L226 Difference]: Without dead ends: 2153 [2022-11-19 07:18:28,038 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 [2022-11-19 07:18:28,041 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 1505 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:28,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 3321 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-19 07:18:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2022-11-19 07:18:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2138. [2022-11-19 07:18:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1329 states have (on average 1.36418359668924) internal successors, (1813), 1392 states have internal predecessors, (1813), 623 states have call successors, (623), 186 states have call predecessors, (623), 185 states have return successors, (630), 607 states have call predecessors, (630), 621 states have call successors, (630) [2022-11-19 07:18:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3066 transitions. [2022-11-19 07:18:28,261 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3066 transitions. Word has length 9 [2022-11-19 07:18:28,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:28,262 INFO L495 AbstractCegarLoop]: Abstraction has 2138 states and 3066 transitions. [2022-11-19 07:18:28,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3066 transitions. [2022-11-19 07:18:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-19 07:18:28,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:28,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:28,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:18:28,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash -881347644, now seen corresponding path program 1 times [2022-11-19 07:18:28,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:28,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396673154] [2022-11-19 07:18:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:28,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:18:28,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:28,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396673154] [2022-11-19 07:18:28,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396673154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:28,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:28,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:28,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018575346] [2022-11-19 07:18:28,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:28,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:28,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:28,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:28,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:28,660 INFO L87 Difference]: Start difference. First operand 2138 states and 3066 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 07:18:30,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:32,472 INFO L93 Difference]: Finished difference Result 4476 states and 6464 transitions. [2022-11-19 07:18:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:32,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2022-11-19 07:18:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:32,487 INFO L225 Difference]: With dead ends: 4476 [2022-11-19 07:18:32,487 INFO L226 Difference]: Without dead ends: 2356 [2022-11-19 07:18:32,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:32,499 INFO L413 NwaCegarLoop]: 1459 mSDtfsCounter, 119 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:32,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 2847 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 07:18:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-11-19 07:18:32,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2339. [2022-11-19 07:18:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 1476 states have (on average 1.3719512195121952) internal successors, (2025), 1541 states have internal predecessors, (2025), 677 states have call successors, (677), 186 states have call predecessors, (677), 185 states have return successors, (686), 661 states have call predecessors, (686), 675 states have call successors, (686) [2022-11-19 07:18:32,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3388 transitions. [2022-11-19 07:18:32,632 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3388 transitions. Word has length 60 [2022-11-19 07:18:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:32,633 INFO L495 AbstractCegarLoop]: Abstraction has 2339 states and 3388 transitions. [2022-11-19 07:18:32,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 07:18:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3388 transitions. [2022-11-19 07:18:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 07:18:32,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:32,643 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:32,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:18:32,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:32,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:32,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1314668476, now seen corresponding path program 1 times [2022-11-19 07:18:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:32,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404915688] [2022-11-19 07:18:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:32,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:18:33,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:33,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404915688] [2022-11-19 07:18:33,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404915688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:33,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:33,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:18:33,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997073500] [2022-11-19 07:18:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:33,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:18:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:18:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:33,179 INFO L87 Difference]: Start difference. First operand 2339 states and 3388 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 07:18:35,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:38,390 INFO L93 Difference]: Finished difference Result 4663 states and 6756 transitions. [2022-11-19 07:18:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:18:38,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73 [2022-11-19 07:18:38,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:38,403 INFO L225 Difference]: With dead ends: 4663 [2022-11-19 07:18:38,404 INFO L226 Difference]: Without dead ends: 2339 [2022-11-19 07:18:38,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:18:38,415 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 3 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:38,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5650 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 07:18:38,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2022-11-19 07:18:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2339. [2022-11-19 07:18:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 1476 states have (on average 1.3705962059620596) internal successors, (2023), 1539 states have internal predecessors, (2023), 677 states have call successors, (677), 186 states have call predecessors, (677), 185 states have return successors, (686), 661 states have call predecessors, (686), 675 states have call successors, (686) [2022-11-19 07:18:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3386 transitions. [2022-11-19 07:18:38,521 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3386 transitions. Word has length 73 [2022-11-19 07:18:38,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:38,522 INFO L495 AbstractCegarLoop]: Abstraction has 2339 states and 3386 transitions. [2022-11-19 07:18:38,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 07:18:38,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3386 transitions. [2022-11-19 07:18:38,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:18:38,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:38,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:38,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:18:38,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1076969492, now seen corresponding path program 1 times [2022-11-19 07:18:38,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:38,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090543043] [2022-11-19 07:18:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:18:39,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:18:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:18:39,797 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:18:39,797 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:18:39,798 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:18:39,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:18:39,804 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 07:18:39,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:18:39,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:18:39 BoogieIcfgContainer [2022-11-19 07:18:39,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:18:39,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:18:39,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:18:39,965 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:18:39,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:19" (3/4) ... [2022-11-19 07:18:39,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:18:39,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:18:39,970 INFO L158 Benchmark]: Toolchain (without parser) took 30352.16ms. Allocated memory was 92.3MB in the beginning and 673.2MB in the end (delta: 580.9MB). Free memory was 63.0MB in the beginning and 402.6MB in the end (delta: -339.6MB). Peak memory consumption was 240.9MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,971 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:18:39,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3386.08ms. Allocated memory was 92.3MB in the beginning and 184.5MB in the end (delta: 92.3MB). Free memory was 62.8MB in the beginning and 115.2MB in the end (delta: -52.4MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 304.78ms. Allocated memory is still 184.5MB. Free memory was 115.2MB in the beginning and 91.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,972 INFO L158 Benchmark]: Boogie Preprocessor took 269.08ms. Allocated memory is still 184.5MB. Free memory was 91.1MB in the beginning and 108.3MB in the end (delta: -17.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,973 INFO L158 Benchmark]: RCFGBuilder took 6071.51ms. Allocated memory was 184.5MB in the beginning and 459.3MB in the end (delta: 274.7MB). Free memory was 107.3MB in the beginning and 211.1MB in the end (delta: -103.8MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,973 INFO L158 Benchmark]: TraceAbstraction took 20306.37ms. Allocated memory was 459.3MB in the beginning and 673.2MB in the end (delta: 213.9MB). Free memory was 210.1MB in the beginning and 403.7MB in the end (delta: -193.6MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2022-11-19 07:18:39,973 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 673.2MB. Free memory was 403.7MB in the beginning and 402.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:18:39,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3386.08ms. Allocated memory was 92.3MB in the beginning and 184.5MB in the end (delta: 92.3MB). Free memory was 62.8MB in the beginning and 115.2MB in the end (delta: -52.4MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 304.78ms. Allocated memory is still 184.5MB. Free memory was 115.2MB in the beginning and 91.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 269.08ms. Allocated memory is still 184.5MB. Free memory was 91.1MB in the beginning and 108.3MB in the end (delta: -17.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * RCFGBuilder took 6071.51ms. Allocated memory was 184.5MB in the beginning and 459.3MB in the end (delta: 274.7MB). Free memory was 107.3MB in the beginning and 211.1MB in the end (delta: -103.8MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. * TraceAbstraction took 20306.37ms. Allocated memory was 459.3MB in the beginning and 673.2MB in the end (delta: 213.9MB). Free memory was 210.1MB in the beginning and 403.7MB in the end (delta: -193.6MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 673.2MB. Free memory was 403.7MB in the beginning and 402.6MB 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}}}}; [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551869:18446744073709551877}, channel_count={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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, arg0={18446744073709551869:18446744073709551877}, arg0={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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); [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={97:0}, __this_module={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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 FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551869:18446744073709551877}, 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=1] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, channel_count={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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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=-4294967295, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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=-4294967295, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, __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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, __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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, __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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, __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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-4294967296, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-4294967296, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-4294967296, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-4294967296, 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={18446744073709551891:-2}, file={18446744073709551891:-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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-17}, xstate={18446744073709551544:73}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, xcomp={18446744073709551544:-17}, xstate={18446744073709551544:73}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551875:18446744073709551880}, rstate={18446744073709551862:18446744073709551882}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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={18446744073709551869:18446744073709551877}, 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, 1129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.1s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 1667 SdHoareTripleChecker+Valid, 15.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1627 mSDsluCounter, 11818 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7030 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1617 IncrementalHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 4788 mSDtfsCounter, 1617 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2339occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 28/28 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 [2022-11-19 07:18:40,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:18:42,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:18:42,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:18:42,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:18:42,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:18:42,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:18:42,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:18:42,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:18:42,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:18:42,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:18:42,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:18:42,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:18:42,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:18:42,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:18:42,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:18:42,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:18:42,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:18:42,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:18:42,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:18:42,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:18:42,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:18:42,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:18:42,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:18:42,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:18:42,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:18:42,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:18:42,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:18:42,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:18:42,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:18:42,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:18:42,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:18:42,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:18:42,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:18:42,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:18:42,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:18:42,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:18:42,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:18:42,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:18:42,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:18:42,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:18:42,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:18:42,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:18:42,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:18:42,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:18:42,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:18:42,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:18:42,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:18:42,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:18:42,444 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:18:42,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:18:42,444 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:18:42,445 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:18:42,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:18:42,451 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:18:42,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:18:42,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:18:42,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:18:42,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:18:42,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:18:42,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:18:42,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:18:42,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:18:42,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:18:42,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:18:42,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:18:42,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:18:42,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:18:42,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:18:42,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:42,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:18:42,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:18:42,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:18:42,458 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:18:42,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:18:42,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:18:42,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:18:42,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:18:42,460 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2022-11-19 07:18:42,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:18:42,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:18:42,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:18:42,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:18:42,911 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:18:42,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:18:42,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/eef746c63/66aefc58fe564c9291da01f4654db893/FLAGc2df48c3d [2022-11-19 07:18:43,944 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:18:43,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:18:44,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/eef746c63/66aefc58fe564c9291da01f4654db893/FLAGc2df48c3d [2022-11-19 07:18:44,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/data/eef746c63/66aefc58fe564c9291da01f4654db893 [2022-11-19 07:18:44,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:18:44,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:18:44,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:44,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:18:44,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:18:44,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:44" (1/1) ... [2022-11-19 07:18:44,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4daffd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:44, skipping insertion in model container [2022-11-19 07:18:44,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:44" (1/1) ... [2022-11-19 07:18:44,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:18:44,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:46,715 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-19 07:18:46,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:46,808 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:18:46,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:47,142 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-19 07:18:47,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:47,201 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:18:47,582 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_ae3c4a14-0f39-4729-a16a-37df3aac5f69/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2022-11-19 07:18:47,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:47,864 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:18:47,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47 WrapperNode [2022-11-19 07:18:47,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:47,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:47,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:18:47,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:18:47,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:47,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,120 INFO L138 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 147, calls inlined = 117, statements flattened = 4122 [2022-11-19 07:18:48,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:48,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:18:48,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:18:48,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:18:48,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:18:48,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:18:48,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:18:48,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:18:48,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (1/1) ... [2022-11-19 07:18:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:48,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:48,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:18:48,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:18:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-19 07:18:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-19 07:18:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 07:18:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 07:18:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-19 07:18:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-19 07:18:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-19 07:18:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-19 07:18:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-19 07:18:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-19 07:18:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-19 07:18:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:18:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:18:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 07:18:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 07:18:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 07:18:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:18:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-19 07:18:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-19 07:18:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-19 07:18:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-19 07:18:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-19 07:18:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-19 07:18:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-19 07:18:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-19 07:18:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-19 07:18:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-19 07:18:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:18:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:18:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 07:18:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 07:18:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:18:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:18:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:18:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:18:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-19 07:18:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-19 07:18:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-19 07:18:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-19 07:18:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-19 07:18:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2022-11-19 07:18:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-19 07:18:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-19 07:18:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-19 07:18:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-19 07:18:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:18:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:18:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-19 07:18:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-19 07:18:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-19 07:18:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-19 07:18:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-19 07:18:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-19 07:18:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:18:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:18:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:18:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:18:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-19 07:18:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-19 07:18:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:18:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:18:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-19 07:18:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-19 07:18:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-19 07:18:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-19 07:18:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-19 07:18:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-19 07:18:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2022-11-19 07:18:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2022-11-19 07:18:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:18:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:18:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:18:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 07:18:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 07:18:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:18:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 07:18:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 07:18:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:18:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:18:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 07:18:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 07:18:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 07:18:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 07:18:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 07:18:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:18:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:18:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:18:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-19 07:18:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-19 07:18:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:18:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:18:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:18:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 07:18:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 07:18:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 07:18:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 07:18:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:18:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:18:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:18:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:18:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-19 07:18:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-19 07:18:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2022-11-19 07:18:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2022-11-19 07:18:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:18:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:18:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:18:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:18:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:18:48,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:18:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-19 07:18:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-19 07:18:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-19 07:18:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-19 07:18:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:18:48,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:18:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 07:18:48,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 07:18:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:18:48,527 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:18:48,527 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-19 07:18:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-19 07:18:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:18:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:18:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-19 07:18:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-19 07:18:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-19 07:18:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-19 07:18:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:18:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:18:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-19 07:18:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-19 07:18:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:18:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:18:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 07:18:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 07:18:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-19 07:18:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-19 07:18:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-19 07:18:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-19 07:18:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-19 07:18:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-19 07:18:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-19 07:18:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-19 07:18:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-19 07:18:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-19 07:18:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:18:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:18:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-19 07:18:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-19 07:18:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-19 07:18:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-19 07:18:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:18:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:18:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-19 07:18:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-19 07:18:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 07:18:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-19 07:18:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-19 07:18:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-19 07:18:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 07:18:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-19 07:18:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 07:18:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 07:18:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-19 07:18:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-19 07:18:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-19 07:18:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-19 07:18:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:18:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:18:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:18:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 07:18:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 07:18:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:18:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:18:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:18:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:18:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:18:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-19 07:18:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-19 07:18:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-19 07:18:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 07:18:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 07:18:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:18:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:18:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 07:18:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 07:18:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 07:18:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 07:18:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-19 07:18:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-19 07:18:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:18:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:18:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-19 07:18:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-19 07:18:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:18:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:18:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-19 07:18:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-19 07:18:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:18:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:18:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-19 07:18:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-19 07:18:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-19 07:18:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-19 07:18:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-19 07:18:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-19 07:18:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-19 07:18:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:18:48,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:18:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:18:48,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:18:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 07:18:48,545 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 07:18:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:18:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:18:49,390 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:18:49,394 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:18:53,153 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-19 07:18:53,153 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-19 07:19:03,464 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:19:03,469 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:19:03,476 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:19:03,479 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:19:03,489 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:19:15,516 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 [2022-11-19 07:19:15,516 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; [2022-11-19 07:19:15,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume !false; [2022-11-19 07:19:15,516 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume false; [2022-11-19 07:19:15,517 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; [2022-11-19 07:19:15,517 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 [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume !false; [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##260: assume false; [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-19 07:19:15,517 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume !false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##205: assume false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##317: assume false; [2022-11-19 07:19:15,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume !false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume !false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume !false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2022-11-19 07:19:15,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-11-19 07:19:15,520 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##367: assume !false; [2022-11-19 07:19:15,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume false; [2022-11-19 07:19:15,627 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:19:15,644 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:19:15,645 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-19 07:19:15,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:19:15 BoogieIcfgContainer [2022-11-19 07:19:15,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:19:15,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:19:15,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:19:15,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:19:15,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:44" (1/3) ... [2022-11-19 07:19:15,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c0b88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:19:15, skipping insertion in model container [2022-11-19 07:19:15,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:47" (2/3) ... [2022-11-19 07:19:15,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c0b88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:19:15, skipping insertion in model container [2022-11-19 07:19:15,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:19:15" (3/3) ... [2022-11-19 07:19:15,658 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2022-11-19 07:19:15,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:19:15,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:19:15,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:19:15,768 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@402a6fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:19:15,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:19:15,778 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) [2022-11-19 07:19:15,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:19:15,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:15,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:15,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2078505288, now seen corresponding path program 1 times [2022-11-19 07:19:15,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:19:15,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096048122] [2022-11-19 07:19:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:15,809 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 [2022-11-19 07:19:15,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:19:15,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:19:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:16,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:19:16,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:19:16,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:19:16,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:19:16,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096048122] [2022-11-19 07:19:16,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096048122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:16,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:16,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:19:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528701213] [2022-11-19 07:19:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:16,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:16,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:19:16,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:16,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:16,989 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) [2022-11-19 07:19:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:17,370 INFO L93 Difference]: Finished difference Result 4250 states and 6135 transitions. [2022-11-19 07:19:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:17,372 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 [2022-11-19 07:19:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:17,415 INFO L225 Difference]: With dead ends: 4250 [2022-11-19 07:19:17,416 INFO L226 Difference]: Without dead ends: 2804 [2022-11-19 07:19:17,431 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 [2022-11-19 07:19:17,436 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 [2022-11-19 07:19:17,438 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] [2022-11-19 07:19:17,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-11-19 07:19:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2801. [2022-11-19 07:19:17,688 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) [2022-11-19 07:19:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3908 transitions. [2022-11-19 07:19:17,748 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3908 transitions. Word has length 12 [2022-11-19 07:19:17,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:17,748 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3908 transitions. [2022-11-19 07:19:17,749 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) [2022-11-19 07:19:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3908 transitions. [2022-11-19 07:19:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:19:17,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:17,763 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] [2022-11-19 07:19:17,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:19:17,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:17,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1790442611, now seen corresponding path program 1 times [2022-11-19 07:19:17,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:19:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807566363] [2022-11-19 07:19:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:19:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:19:18,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:19:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:19,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:19:19,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:19:19,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:19:19,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:19:19,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807566363] [2022-11-19 07:19:19,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807566363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:19,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:19,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:19:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755229227] [2022-11-19 07:19:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:19,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:19:19,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:19:19,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:19:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:19,373 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) [2022-11-19 07:19:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:19,697 INFO L93 Difference]: Finished difference Result 5578 states and 7787 transitions. [2022-11-19 07:19:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:19:19,699 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 [2022-11-19 07:19:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:19,717 INFO L225 Difference]: With dead ends: 5578 [2022-11-19 07:19:19,717 INFO L226 Difference]: Without dead ends: 2801 [2022-11-19 07:19:19,728 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 [2022-11-19 07:19:19,731 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 [2022-11-19 07:19:19,733 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] [2022-11-19 07:19:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-19 07:19:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2022-11-19 07:19:19,939 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) [2022-11-19 07:19:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3906 transitions. [2022-11-19 07:19:19,957 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3906 transitions. Word has length 74 [2022-11-19 07:19:19,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:19,957 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3906 transitions. [2022-11-19 07:19:19,958 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) [2022-11-19 07:19:19,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3906 transitions. [2022-11-19 07:19:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 07:19:19,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:19,967 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] [2022-11-19 07:19:20,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:20,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:20,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:20,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1751657911, now seen corresponding path program 1 times [2022-11-19 07:19:20,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:19:20,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852800014] [2022-11-19 07:19:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:20,195 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 [2022-11-19 07:19:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:19:20,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:19:20,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:21,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:19:21,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:19:21,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:19:21,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:19:21,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852800014] [2022-11-19 07:19:21,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852800014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:21,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:21,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787987512] [2022-11-19 07:19:21,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:21,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:19:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:21,464 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) [2022-11-19 07:19:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:21,742 INFO L93 Difference]: Finished difference Result 6586 states and 9372 transitions. [2022-11-19 07:19:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:21,742 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 [2022-11-19 07:19:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:21,795 INFO L225 Difference]: With dead ends: 6586 [2022-11-19 07:19:21,795 INFO L226 Difference]: Without dead ends: 3812 [2022-11-19 07:19:21,806 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 [2022-11-19 07:19:21,807 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 [2022-11-19 07:19:21,807 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] [2022-11-19 07:19:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-11-19 07:19:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3796. [2022-11-19 07:19:22,048 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) [2022-11-19 07:19:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5465 transitions. [2022-11-19 07:19:22,069 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5465 transitions. Word has length 89 [2022-11-19 07:19:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:22,069 INFO L495 AbstractCegarLoop]: Abstraction has 3796 states and 5465 transitions. [2022-11-19 07:19:22,069 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) [2022-11-19 07:19:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5465 transitions. [2022-11-19 07:19:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 07:19:22,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:22,076 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] [2022-11-19 07:19:22,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:22,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:22,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:22,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:22,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1606886577, now seen corresponding path program 1 times [2022-11-19 07:19:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:19:22,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880542401] [2022-11-19 07:19:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:22,307 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 [2022-11-19 07:19:22,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:19:22,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:19:22,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:19:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:23,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:19:23,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:23,703 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:19:23,710 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 [2022-11-19 07:19:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:19:27,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:19:27,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:19:27,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880542401] [2022-11-19 07:19:27,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880542401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:27,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:27,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:19:27,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149040245] [2022-11-19 07:19:27,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:27,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:19:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:19:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:19:27,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=11, Unknown=2, NotChecked=0, Total=20 [2022-11-19 07:19:27,859 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) [2022-11-19 07:19:31,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:33,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:35,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:37,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:39,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:41,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:46,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:48,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:51,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:53,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:58,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:03,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:07,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:09,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:09,915 INFO L93 Difference]: Finished difference Result 7578 states and 10952 transitions. [2022-11-19 07:20:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:20:09,920 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 [2022-11-19 07:20:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:09,941 INFO L225 Difference]: With dead ends: 7578 [2022-11-19 07:20:09,942 INFO L226 Difference]: Without dead ends: 3810 [2022-11-19 07:20:09,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2022-11-19 07:20:09,959 INFO L413 NwaCegarLoop]: 1982 mSDtfsCounter, 4 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7489 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:09,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7489 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 11 Unknown, 10 Unchecked, 41.7s Time] [2022-11-19 07:20:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-11-19 07:20:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3804. [2022-11-19 07:20:10,208 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) [2022-11-19 07:20:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5477 transitions. [2022-11-19 07:20:10,227 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5477 transitions. Word has length 106 [2022-11-19 07:20:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:10,228 INFO L495 AbstractCegarLoop]: Abstraction has 3804 states and 5477 transitions. [2022-11-19 07:20:10,228 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) [2022-11-19 07:20:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5477 transitions. [2022-11-19 07:20:10,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-19 07:20:10,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:10,242 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] [2022-11-19 07:20:10,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:20:10,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:20:10,464 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:10,465 INFO L85 PathProgramCache]: Analyzing trace with hash -329013054, now seen corresponding path program 1 times [2022-11-19 07:20:10,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:20:10,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848683108] [2022-11-19 07:20:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:10,466 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 [2022-11-19 07:20:10,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:20:10,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:20:10,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:20:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:20:39,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:21:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:21:05,557 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 07:21:05,558 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:21:05,559 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:21:05,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:21:05,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:21:05,786 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:21:05,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:21:05,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:21:05 BoogieIcfgContainer [2022-11-19 07:21:05,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:21:05,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:21:05,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:21:05,964 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:21:05,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:19:15" (3/4) ... [2022-11-19 07:21:05,968 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:21:05,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:21:05,969 INFO L158 Benchmark]: Toolchain (without parser) took 141610.29ms. Allocated memory was 56.6MB in the beginning and 469.8MB in the end (delta: 413.1MB). Free memory was 35.5MB in the beginning and 188.0MB in the end (delta: -152.6MB). Peak memory consumption was 260.8MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,969 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:21:05,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3504.63ms. Allocated memory was 56.6MB in the beginning and 167.8MB in the end (delta: 111.1MB). Free memory was 35.3MB in the beginning and 85.2MB in the end (delta: -49.9MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 255.26ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 63.0MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,970 INFO L158 Benchmark]: Boogie Preprocessor took 282.32ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 63.0MB in the beginning and 151.3MB in the end (delta: -88.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,970 INFO L158 Benchmark]: RCFGBuilder took 27244.03ms. Allocated memory was 247.5MB in the beginning and 390.1MB in the end (delta: 142.6MB). Free memory was 150.2MB in the beginning and 190.8MB in the end (delta: -40.6MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,971 INFO L158 Benchmark]: TraceAbstraction took 110311.00ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 189.8MB in the beginning and 188.0MB in the end (delta: 1.8MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2022-11-19 07:21:05,971 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 469.8MB. Free memory is still 188.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:21:05,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3504.63ms. Allocated memory was 56.6MB in the beginning and 167.8MB in the end (delta: 111.1MB). Free memory was 35.3MB in the beginning and 85.2MB in the end (delta: -49.9MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 255.26ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 63.0MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 282.32ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 63.0MB in the beginning and 151.3MB in the end (delta: -88.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * RCFGBuilder took 27244.03ms. Allocated memory was 247.5MB in the beginning and 390.1MB in the end (delta: 142.6MB). Free memory was 150.2MB in the beginning and 190.8MB in the end (delta: -40.6MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. * TraceAbstraction took 110311.00ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 189.8MB in the beginning and 188.0MB in the end (delta: 1.8MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 469.8MB. Free memory is still 188.0MB. 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: 110.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 2641 SdHoareTripleChecker+Valid, 41.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2487 mSDsluCounter, 24037 SdHoareTripleChecker+Invalid, 40.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 15391 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 502 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, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3804occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 30.4s SatisfiabilityAnalysisTime, 5.0s 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 [2022-11-19 07:21:06,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3c4a14-0f39-4729-a16a-37df3aac5f69/bin/utaipan-I9t0OCRTmS/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