./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/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_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V --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 --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:56:02,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:56:02,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:56:02,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:56:02,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:56:02,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:56:02,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:56:02,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:56:02,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:56:02,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:56:02,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:56:02,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:56:02,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:56:02,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:56:02,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:56:02,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:56:02,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:56:02,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:56:02,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:56:02,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:56:02,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:56:02,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:56:02,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:56:02,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:56:02,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:56:02,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:56:02,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:56:02,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:56:02,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:56:02,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:56:02,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:56:02,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:56:02,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:56:02,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:56:02,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:56:02,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:56:02,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:56:02,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:56:02,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:56:02,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:56:02,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:56:02,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:56:02,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:56:02,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:56:02,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:56:02,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:56:02,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:56:02,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:56:02,843 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:56:02,843 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:56:02,843 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:56:02,844 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:56:02,845 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:56:02,845 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:56:02,845 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:56:02,845 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:56:02,846 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:56:02,846 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:56:02,846 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:56:02,846 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:56:02,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:56:02,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:56:02,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:56:02,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:56:02,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:56:02,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:56:02,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:56:02,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:56:02,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:56:02,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:56:02,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:56:02,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:02,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:56:02,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:56:02,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:56:02,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:56:02,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:56:02,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:56:02,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:56:02,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:56:02,851 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-23 01:56:03,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:56:03,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:56:03,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:56:03,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:56:03,157 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:56:03,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:56:03,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/d5b144870/9c7f2e904345459b8e99f76b79e8a38a/FLAG8df1e46af [2021-11-23 01:56:04,114 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:56:04,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:56:04,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/d5b144870/9c7f2e904345459b8e99f76b79e8a38a/FLAG8df1e46af [2021-11-23 01:56:04,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/d5b144870/9c7f2e904345459b8e99f76b79e8a38a [2021-11-23 01:56:04,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:56:04,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:56:04,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:04,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:56:04,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:56:04,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:04" (1/1) ... [2021-11-23 01:56:04,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0ee8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:04, skipping insertion in model container [2021-11-23 01:56:04,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:04" (1/1) ... [2021-11-23 01:56:04,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:56:04,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:07,039 WARN L230 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_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-23 01:56:07,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:07,151 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:56:07,591 WARN L230 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_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-23 01:56:07,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:07,905 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:56:07,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07 WrapperNode [2021-11-23 01:56:07,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:07,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:07,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:56:07,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:56:07,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,208 INFO L137 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 144, calls inlined = 114, statements flattened = 4213 [2021-11-23 01:56:08,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:08,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:56:08,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:56:08,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:56:08,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:56:08,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:56:08,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:56:08,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:56:08,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (1/1) ... [2021-11-23 01:56:08,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:56:08,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:56:08,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:56:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-23 01:56:08,556 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-23 01:56:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-23 01:56:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-23 01:56:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 01:56:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 01:56:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-11-23 01:56:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-11-23 01:56:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 01:56:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-11-23 01:56:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-11-23 01:56:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:56:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 01:56:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 01:56:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:56:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 01:56:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 01:56:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-23 01:56:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-23 01:56:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-23 01:56:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-23 01:56:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-23 01:56:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-23 01:56:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-23 01:56:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-23 01:56:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 01:56:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 01:56:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 01:56:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 01:56:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 01:56:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 01:56:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:56:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:56:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-23 01:56:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-23 01:56:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-23 01:56:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-23 01:56:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-23 01:56:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-23 01:56:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-23 01:56:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-23 01:56:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 01:56:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 01:56:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2021-11-23 01:56:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2021-11-23 01:56:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-23 01:56:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-23 01:56:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-23 01:56:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-23 01:56:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 01:56:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 01:56:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:56:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:56:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-23 01:56:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-23 01:56:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 01:56:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 01:56:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-23 01:56:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-23 01:56:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-23 01:56:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-23 01:56:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-23 01:56:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-23 01:56:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2021-11-23 01:56:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2021-11-23 01:56:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:56:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:56:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:56:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 01:56:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 01:56:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:56:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 01:56:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 01:56:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 01:56:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 01:56:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-23 01:56:08,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-23 01:56:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:56:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:56:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-23 01:56:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-23 01:56:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 01:56:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 01:56:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 01:56:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 01:56:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 01:56:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 01:56:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 01:56:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 01:56:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-23 01:56:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-23 01:56:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2021-11-23 01:56:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2021-11-23 01:56:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 01:56:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 01:56:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 01:56:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 01:56:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 01:56:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-23 01:56:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-23 01:56:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 01:56:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 01:56:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:56:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 01:56:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 01:56:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-23 01:56:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-23 01:56:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 01:56:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 01:56:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-23 01:56:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-23 01:56:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:56:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-23 01:56:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-23 01:56:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 01:56:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 01:56:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2021-11-23 01:56:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2021-11-23 01:56:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:56:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 01:56:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 01:56:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-23 01:56:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-23 01:56:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-23 01:56:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-23 01:56:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-23 01:56:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-23 01:56:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-23 01:56:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-23 01:56:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-23 01:56:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-23 01:56:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-23 01:56:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:56:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-23 01:56:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-23 01:56:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 01:56:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 01:56:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-23 01:56:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-23 01:56:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 01:56:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 01:56:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-23 01:56:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-23 01:56:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-23 01:56:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-23 01:56:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:56:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 01:56:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 01:56:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 01:56:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:56:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 01:56:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 01:56:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 01:56:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 01:56:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 01:56:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 01:56:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 01:56:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 01:56:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 01:56:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 01:56:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-23 01:56:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-23 01:56:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 01:56:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 01:56:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 01:56:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 01:56:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 01:56:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 01:56:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-11-23 01:56:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-11-23 01:56:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 01:56:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 01:56:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-23 01:56:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-23 01:56:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:56:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:56:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-23 01:56:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-23 01:56:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-23 01:56:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-23 01:56:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-23 01:56:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-23 01:56:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:56:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-23 01:56:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-23 01:56:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 01:56:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 01:56:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:56:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:56:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 01:56:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 01:56:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 01:56:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 01:56:09,300 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:56:09,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:56:09,883 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-23 01:56:09,884 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-23 01:56:10,672 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:56:10,677 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:56:10,679 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:56:11,208 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume !false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false; [2021-11-23 01:56:11,209 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume !false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-11-23 01:56:11,210 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume !false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##143: assume false; [2021-11-23 01:56:11,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2021-11-23 01:56:11,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2021-11-23 01:56:11,361 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:56:11,367 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:56:12,032 INFO L768 $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 [2021-11-23 01:56:12,032 INFO L768 $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; [2021-11-23 01:56:12,032 INFO L768 $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; [2021-11-23 01:56:12,033 INFO L768 $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 [2021-11-23 01:56:12,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2021-11-23 01:56:12,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2021-11-23 01:56:12,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2021-11-23 01:56:12,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2021-11-23 01:56:12,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-11-23 01:56:12,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-11-23 01:56:12,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume !false; [2021-11-23 01:56:12,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume false; [2021-11-23 01:56:12,101 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:56:13,106 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:56:13,106 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-23 01:56:13,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:13 BoogieIcfgContainer [2021-11-23 01:56:13,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:56:13,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:56:13,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:56:13,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:56:13,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:04" (1/3) ... [2021-11-23 01:56:13,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3605da7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:13, skipping insertion in model container [2021-11-23 01:56:13,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:07" (2/3) ... [2021-11-23 01:56:13,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3605da7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:13, skipping insertion in model container [2021-11-23 01:56:13,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:13" (3/3) ... [2021-11-23 01:56:13,120 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:56:13,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:56:13,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:56:13,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:56:13,213 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:56:13,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:56:13,273 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) [2021-11-23 01:56:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:56:13,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:56:13,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:56:13,279 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:56:13,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:56:13,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2080238002, now seen corresponding path program 1 times [2021-11-23 01:56:13,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:56:13,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811288091] [2021-11-23 01:56:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:56:13,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:56:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:56:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:56:13,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:56:13,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811288091] [2021-11-23 01:56:13,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811288091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:56:13,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:56:13,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:56:13,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879977201] [2021-11-23 01:56:13,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:56:13,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:56:13,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:56:13,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:56:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:56:13,825 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) [2021-11-23 01:56:16,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:18,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:19,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:56:19,737 INFO L93 Difference]: Finished difference Result 3308 states and 4831 transitions. [2021-11-23 01:56:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:56:19,740 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 [2021-11-23 01:56:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:56:19,775 INFO L225 Difference]: With dead ends: 3308 [2021-11-23 01:56:19,776 INFO L226 Difference]: Without dead ends: 2176 [2021-11-23 01:56:19,788 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:56:19,792 INFO L933 BasicCegarLoop]: 1925 mSDtfsCounter, 1545 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:56:19,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 3325 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-11-23 01:56:19,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2021-11-23 01:56:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2161. [2021-11-23 01:56:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 1342 states have (on average 1.3651266766020864) internal successors, (1832), 1409 states have internal predecessors, (1832), 633 states have call successors, (633), 186 states have call predecessors, (633), 185 states have return successors, (634), 615 states have call predecessors, (634), 631 states have call successors, (634) [2021-11-23 01:56:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3099 transitions. [2021-11-23 01:56:20,033 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3099 transitions. Word has length 9 [2021-11-23 01:56:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:56:20,034 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 3099 transitions. [2021-11-23 01:56:20,034 INFO L471 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) [2021-11-23 01:56:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3099 transitions. [2021-11-23 01:56:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 01:56:20,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:56:20,058 INFO L514 BasicCegarLoop]: 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] [2021-11-23 01:56:20,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:56:20,059 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:56:20,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:56:20,063 INFO L85 PathProgramCache]: Analyzing trace with hash -55838311, now seen corresponding path program 1 times [2021-11-23 01:56:20,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:56:20,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384673353] [2021-11-23 01:56:20,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:56:20,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:56:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:56:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:56:20,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:56:20,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384673353] [2021-11-23 01:56:20,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384673353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:56:20,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:56:20,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:56:20,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206646704] [2021-11-23 01:56:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:56:20,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:56:20,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:56:20,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:56:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:56:20,285 INFO L87 Difference]: Start difference. First operand 2161 states and 3099 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 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) [2021-11-23 01:56:22,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:24,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:56:26,569 INFO L93 Difference]: Finished difference Result 4757 states and 6907 transitions. [2021-11-23 01:56:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:56:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 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 [2021-11-23 01:56:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:56:26,596 INFO L225 Difference]: With dead ends: 4757 [2021-11-23 01:56:26,596 INFO L226 Difference]: Without dead ends: 2613 [2021-11-23 01:56:26,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:56:26,612 INFO L933 BasicCegarLoop]: 1456 mSDtfsCounter, 424 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 79 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 5488 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:56:26,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 5488 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 951 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2021-11-23 01:56:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2021-11-23 01:56:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2564. [2021-11-23 01:56:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 1637 states have (on average 1.3836285888821014) internal successors, (2265), 1708 states have internal predecessors, (2265), 741 states have call successors, (741), 186 states have call predecessors, (741), 185 states have return successors, (744), 723 states have call predecessors, (744), 739 states have call successors, (744) [2021-11-23 01:56:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3750 transitions. [2021-11-23 01:56:26,819 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3750 transitions. Word has length 60 [2021-11-23 01:56:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:56:26,820 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 3750 transitions. [2021-11-23 01:56:26,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 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) [2021-11-23 01:56:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3750 transitions. [2021-11-23 01:56:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 01:56:26,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:56:26,836 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:56:26,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:56:26,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:56:26,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:56:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash 106915256, now seen corresponding path program 1 times [2021-11-23 01:56:26,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:56:26,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667568251] [2021-11-23 01:56:26,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:56:26,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:56:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:56:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:56:27,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:56:27,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667568251] [2021-11-23 01:56:27,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667568251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:56:27,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:56:27,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:56:27,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240138679] [2021-11-23 01:56:27,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:56:27,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:56:27,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:56:27,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:56:27,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:56:27,223 INFO L87 Difference]: Start difference. First operand 2564 states and 3750 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-23 01:56:29,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:30,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:32,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:56:37,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 01:56:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:56:38,688 INFO L93 Difference]: Finished difference Result 5113 states and 7480 transitions. [2021-11-23 01:56:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:56:38,689 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2021-11-23 01:56:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:56:38,710 INFO L225 Difference]: With dead ends: 5113 [2021-11-23 01:56:38,710 INFO L226 Difference]: Without dead ends: 2564 [2021-11-23 01:56:38,724 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:56:38,727 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 3 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:56:38,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 5650 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 793 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2021-11-23 01:56:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2021-11-23 01:56:38,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2564. [2021-11-23 01:56:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 1637 states have (on average 1.3824068417837507) internal successors, (2263), 1706 states have internal predecessors, (2263), 741 states have call successors, (741), 186 states have call predecessors, (741), 185 states have return successors, (744), 723 states have call predecessors, (744), 739 states have call successors, (744) [2021-11-23 01:56:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3748 transitions. [2021-11-23 01:56:38,875 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3748 transitions. Word has length 75 [2021-11-23 01:56:38,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:56:38,875 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 3748 transitions. [2021-11-23 01:56:38,876 INFO L471 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-23 01:56:38,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3748 transitions. [2021-11-23 01:56:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:56:38,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:56:38,883 INFO L514 BasicCegarLoop]: 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] [2021-11-23 01:56:38,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:56:38,883 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:56:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:56:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1121422456, now seen corresponding path program 1 times [2021-11-23 01:56:38,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:56:38,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404420694] [2021-11-23 01:56:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:56:38,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:56:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:56:39,211 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:56:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:56:39,524 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 01:56:39,525 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 01:56:39,526 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:56:39,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:56:39,531 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 01:56:39,534 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:56:39,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:56:39 BoogieIcfgContainer [2021-11-23 01:56:39,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:56:39,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:56:39,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:56:39,744 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:56:39,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:13" (3/4) ... [2021-11-23 01:56:39,748 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 01:56:39,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:56:39,748 INFO L158 Benchmark]: Toolchain (without parser) took 35177.87ms. Allocated memory was 88.1MB in the beginning and 534.8MB in the end (delta: 446.7MB). Free memory was 38.3MB in the beginning and 355.8MB in the end (delta: -317.5MB). Peak memory consumption was 127.8MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,751 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 91.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3330.43ms. Allocated memory was 88.1MB in the beginning and 192.9MB in the end (delta: 104.9MB). Free memory was 38.1MB in the beginning and 119.2MB in the end (delta: -81.1MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 301.89ms. Allocated memory is still 192.9MB. Free memory was 119.2MB in the beginning and 95.1MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,752 INFO L158 Benchmark]: Boogie Preprocessor took 260.65ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 71.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,753 INFO L158 Benchmark]: RCFGBuilder took 4640.89ms. Allocated memory was 192.9MB in the beginning and 329.3MB in the end (delta: 136.3MB). Free memory was 71.0MB in the beginning and 181.1MB in the end (delta: -110.2MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,753 INFO L158 Benchmark]: TraceAbstraction took 26629.99ms. Allocated memory was 329.3MB in the beginning and 534.8MB in the end (delta: 205.5MB). Free memory was 181.1MB in the beginning and 355.8MB in the end (delta: -174.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2021-11-23 01:56:39,754 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 534.8MB. Free memory is still 355.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:56:39,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 91.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3330.43ms. Allocated memory was 88.1MB in the beginning and 192.9MB in the end (delta: 104.9MB). Free memory was 38.1MB in the beginning and 119.2MB in the end (delta: -81.1MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 301.89ms. Allocated memory is still 192.9MB. Free memory was 119.2MB in the beginning and 95.1MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 260.65ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 71.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4640.89ms. Allocated memory was 192.9MB in the beginning and 329.3MB in the end (delta: 136.3MB). Free memory was 71.0MB in the beginning and 181.1MB in the end (delta: -110.2MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26629.99ms. Allocated memory was 329.3MB in the beginning and 534.8MB in the end (delta: 205.5MB). Free memory was 181.1MB in the beginning and 355.8MB in the end (delta: -174.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 534.8MB. Free memory is still 355.8MB. 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. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={18446744073709551634:18446744073709551621}, arg0={18446744073709551634:18446744073709551621}, arg0={18446744073709551634:18446744073709551621}, arg1={20:0}, arg1={20:0}, arg2={73:0}, arg2={73:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp VAL [__key={73:0}, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}] [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={73:0}, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, IS_ERR((void const *)ppp_class)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=1] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=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={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, pf->kind=-4294967295, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, pf->kind=-4294967295, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6931] FCALL mutex_lock_nested(& ppp_mutex, 0U) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7014] FCALL might_fault() VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __this_module={18446744073709551634:18446744073709551621}, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7037] val = (int )__val_gu___1 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7038] COND FALSE !(__ret_gu___1 != 0) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7043] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7043] RET spin_lock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7044] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7044] RET spin_lock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-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={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-5, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7047] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7047] RET spin_unlock_bh(& ppp->rlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-5, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7048] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7048] RET spin_unlock_bh(& ppp->wlock) VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-5, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7050] COND TRUE (cflags & 64) != 0 VAL [\old(arg)=18446744073709551613, \old(cmd)=1074033753, \old(ldv_module_refcounter)=1, __mptr___1={377:-376}, __ret_gu___1=0, __this_module={18446744073709551634:18446744073709551621}, __val_gu___1=4294967292, arg=18446744073709551613, argp={0:-3}, cflags=-5, channel_count={62:0}, cmd=1074033753, code={77:0}, code___0={71:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={18446744073709551650:-2}, file={18446744073709551650:-2}, idle={75:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={74:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-3}, pf={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=-4] [L7052] CALL ppp_ccp_closed(ppp) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551623:18446744073709551654}, rstate={18446744073709551626:18446744073709551641}, xcomp={18446744073709551617:-18}, xstate={18446744073709551617:0}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551623:18446744073709551654}, rstate={18446744073709551626:18446744073709551641}, xcomp={18446744073709551617:-18}, xstate={18446744073709551617:0}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551623:18446744073709551654}, rstate={18446744073709551626:18446744073709551641}, xcomp={18446744073709551617:-18}, xstate={18446744073709551617:0}] [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551623:18446744073709551654}, rstate={18446744073709551626:18446744073709551641}, xcomp={18446744073709551617:-18}, xcomp->comp_free={-1:12}, xstate={18446744073709551617:0}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9974] RET (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={377:-376}, ppp={377:-376}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={18446744073709551623:18446744073709551654}, rstate={18446744073709551626:18446744073709551641}, xcomp={18446744073709551617:-18}, xcomp->comp_free={-1:12}, xstate={18446744073709551617:0}] [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={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={79:-78}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={79:-78}, module={79:-78}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={79:-78}, module={79:-78}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551634:18446744073709551621}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 97 procedures, 1129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 2032 SdHoareTripleChecker+Valid, 22.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1972 mSDsluCounter, 14463 SdHoareTripleChecker+Invalid, 21.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11008 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2162 IncrementalHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 4795 mSDtfsCounter, 2162 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2564occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 64 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 8/8 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 [2021-11-23 01:56:39,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/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_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V --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 --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:56:42,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:56:42,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:56:42,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:56:42,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:56:42,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:56:42,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:56:42,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:56:42,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:56:42,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:56:42,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:56:42,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:56:42,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:56:42,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:56:42,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:56:42,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:56:42,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:56:42,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:56:42,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:56:42,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:56:42,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:56:42,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:56:42,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:56:42,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:56:42,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:56:42,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:56:42,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:56:42,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:56:42,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:56:42,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:56:42,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:56:42,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:56:42,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:56:42,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:56:42,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:56:42,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:56:42,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:56:42,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:56:42,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:56:42,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:56:42,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:56:42,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-23 01:56:42,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:56:42,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:56:42,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:56:42,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:56:42,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:56:42,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:56:42,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:56:42,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:56:42,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:56:42,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:56:42,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:56:42,366 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:56:42,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:56:42,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:56:42,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:56:42,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:56:42,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:56:42,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 01:56:42,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 01:56:42,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 01:56:42,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:56:42,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:56:42,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:56:42,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:56:42,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 01:56:42,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:56:42,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:42,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:56:42,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:56:42,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:56:42,372 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 01:56:42,372 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 01:56:42,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:56:42,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:56:42,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:56:42,373 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_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-23 01:56:42,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:56:42,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:56:42,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:56:42,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:56:42,782 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:56:42,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:56:42,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/64c8c1343/5ecb13b075074ac9b7fffcb17befc08f/FLAG8c3b8b7cb [2021-11-23 01:56:43,925 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:56:43,926 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:56:44,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/64c8c1343/5ecb13b075074ac9b7fffcb17befc08f/FLAG8c3b8b7cb [2021-11-23 01:56:44,281 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/data/64c8c1343/5ecb13b075074ac9b7fffcb17befc08f [2021-11-23 01:56:44,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:56:44,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:56:44,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:44,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:56:44,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:56:44,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:44" (1/1) ... [2021-11-23 01:56:44,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e4b0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:44, skipping insertion in model container [2021-11-23 01:56:44,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:44" (1/1) ... [2021-11-23 01:56:44,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:56:44,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:46,557 WARN L230 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_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-23 01:56:46,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:46,653 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 01:56:46,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:47,179 WARN L230 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_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-23 01:56:47,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:47,217 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:56:47,667 WARN L230 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_3a69135a-164f-4333-bbb0-06a9effe29f9/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-23 01:56:47,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:47,972 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:56:47,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47 WrapperNode [2021-11-23 01:56:47,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:47,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:47,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:56:47,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:56:47,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,276 INFO L137 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 147, calls inlined = 117, statements flattened = 4122 [2021-11-23 01:56:48,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:48,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:56:48,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:56:48,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:56:48,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:56:48,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:56:48,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:56:48,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:56:48,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (1/1) ... [2021-11-23 01:56:48,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:48,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:56:48,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:56:48,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:56:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-23 01:56:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-23 01:56:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 01:56:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 01:56:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 01:56:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 01:56:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-11-23 01:56:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-11-23 01:56:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 01:56:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-11-23 01:56:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-11-23 01:56:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 01:56:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:56:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 01:56:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 01:56:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-23 01:56:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:56:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 01:56:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 01:56:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-23 01:56:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-23 01:56:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-23 01:56:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-23 01:56:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-23 01:56:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-23 01:56:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-23 01:56:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-23 01:56:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 01:56:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 01:56:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 01:56:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 01:56:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 01:56:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 01:56:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:56:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:56:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-23 01:56:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-23 01:56:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-23 01:56:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-23 01:56:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2021-11-23 01:56:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2021-11-23 01:56:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-23 01:56:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-23 01:56:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-23 01:56:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-23 01:56:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 01:56:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 01:56:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2021-11-23 01:56:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2021-11-23 01:56:48,625 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-23 01:56:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-23 01:56:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-23 01:56:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-23 01:56:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 01:56:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 01:56:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:56:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:56:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-23 01:56:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-23 01:56:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 01:56:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 01:56:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-23 01:56:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-23 01:56:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-23 01:56:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-23 01:56:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-23 01:56:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-23 01:56:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure __unit_alloc [2021-11-23 01:56:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __unit_alloc [2021-11-23 01:56:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:56:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:56:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:56:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 01:56:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 01:56:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:56:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 01:56:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 01:56:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 01:56:48,632 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 01:56:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 01:56:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 01:56:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 01:56:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-23 01:56:48,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-23 01:56:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:56:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 01:56:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:56:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-23 01:56:48,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-23 01:56:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 01:56:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 01:56:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 01:56:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 01:56:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 01:56:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 01:56:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-23 01:56:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 01:56:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 01:56:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 01:56:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 01:56:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-23 01:56:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-23 01:56:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure sk_run_filter [2021-11-23 01:56:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_run_filter [2021-11-23 01:56:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 01:56:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 01:56:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 01:56:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 01:56:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 01:56:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 01:56:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-23 01:56:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-23 01:56:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-23 01:56:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-23 01:56:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 01:56:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 01:56:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 01:56:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 01:56:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 01:56:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 01:56:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-23 01:56:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-23 01:56:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 01:56:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 01:56:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-23 01:56:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-23 01:56:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-23 01:56:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-23 01:56:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 01:56:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 01:56:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2021-11-23 01:56:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2021-11-23 01:56:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 01:56:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 01:56:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-23 01:56:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-23 01:56:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-23 01:56:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-23 01:56:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-23 01:56:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-23 01:56:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-23 01:56:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-23 01:56:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-23 01:56:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-23 01:56:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-23 01:56:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-23 01:56:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:56:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:56:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-23 01:56:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-23 01:56:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-23 01:56:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-23 01:56:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 01:56:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 01:56:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-23 01:56:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-23 01:56:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-23 01:56:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 01:56:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 01:56:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-23 01:56:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-23 01:56:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-23 01:56:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 01:56:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 01:56:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-23 01:56:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-23 01:56:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-23 01:56:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-23 01:56:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:56:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 01:56:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 01:56:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 01:56:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 01:56:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 01:56:48,662 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-23 01:56:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-23 01:56:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 01:56:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 01:56:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 01:56:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 01:56:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 01:56:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 01:56:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 01:56:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 01:56:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-23 01:56:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-23 01:56:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 01:56:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 01:56:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 01:56:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 01:56:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 01:56:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 01:56:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-11-23 01:56:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-11-23 01:56:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 01:56:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 01:56:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-23 01:56:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-23 01:56:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-23 01:56:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-23 01:56:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-23 01:56:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-23 01:56:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-23 01:56:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 01:56:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 01:56:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:56:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:56:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 01:56:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 01:56:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 01:56:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 01:56:49,445 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:56:49,452 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:56:52,901 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-23 01:56:52,902 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-23 01:57:04,086 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:57:04,091 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:57:04,096 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:57:04,099 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:57:04,109 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 01:57:14,855 INFO L768 $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 [2021-11-23 01:57:14,855 INFO L768 $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; [2021-11-23 01:57:14,855 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume !false; [2021-11-23 01:57:14,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume false; [2021-11-23 01:57:14,856 INFO L768 $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; [2021-11-23 01:57:14,856 INFO L768 $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 [2021-11-23 01:57:14,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume !false; [2021-11-23 01:57:14,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##260: assume false; [2021-11-23 01:57:14,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##265: assume !false; [2021-11-23 01:57:14,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##264: assume false; [2021-11-23 01:57:14,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2021-11-23 01:57:14,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2021-11-23 01:57:14,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##206: assume !false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##205: assume false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-11-23 01:57:14,858 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##317: assume false; [2021-11-23 01:57:14,859 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume !false; [2021-11-23 01:57:14,859 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume !false; [2021-11-23 01:57:14,859 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##323: assume false; [2021-11-23 01:57:14,859 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume !false; [2021-11-23 01:57:14,859 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2021-11-23 01:57:14,860 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2021-11-23 01:57:14,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-11-23 01:57:14,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2021-11-23 01:57:14,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-11-23 01:57:14,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-11-23 01:57:14,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false; [2021-11-23 01:57:14,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false; [2021-11-23 01:57:14,863 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2021-11-23 01:57:14,863 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##367: assume !false; [2021-11-23 01:57:14,863 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume false; [2021-11-23 01:57:14,927 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:57:14,945 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:57:14,945 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-23 01:57:14,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:14 BoogieIcfgContainer [2021-11-23 01:57:14,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:57:14,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:57:14,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:57:14,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:57:14,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:44" (1/3) ... [2021-11-23 01:57:14,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b5efa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:14, skipping insertion in model container [2021-11-23 01:57:14,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:47" (2/3) ... [2021-11-23 01:57:14,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b5efa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:14, skipping insertion in model container [2021-11-23 01:57:14,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:14" (3/3) ... [2021-11-23 01:57:14,996 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-23 01:57:15,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:57:15,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:57:15,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:57:15,068 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:57:15,069 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:57:15,119 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) [2021-11-23 01:57:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:57:15,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:15,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:15,126 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:57:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:15,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2078505288, now seen corresponding path program 1 times [2021-11-23 01:57:15,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:57:15,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622591495] [2021-11-23 01:57:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:15,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:57:15,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:57:15,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:57:15,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 01:57:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:16,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 01:57:16,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:57:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:57:16,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:57:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:57:16,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:57:16,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622591495] [2021-11-23 01:57:16,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622591495] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:16,324 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:16,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 01:57:16,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14032673] [2021-11-23 01:57:16,327 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:16,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:57:16,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:57:16,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:57:16,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:57:16,367 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) [2021-11-23 01:57:16,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:16,810 INFO L93 Difference]: Finished difference Result 4250 states and 6135 transitions. [2021-11-23 01:57:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:57:16,813 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 [2021-11-23 01:57:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:16,854 INFO L225 Difference]: With dead ends: 4250 [2021-11-23 01:57:16,855 INFO L226 Difference]: Without dead ends: 2804 [2021-11-23 01:57:16,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:57:16,876 INFO L933 BasicCegarLoop]: 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:16,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1978 Valid, 4305 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:57:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-11-23 01:57:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2801. [2021-11-23 01:57:17,110 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) [2021-11-23 01:57:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3908 transitions. [2021-11-23 01:57:17,145 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3908 transitions. Word has length 12 [2021-11-23 01:57:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:17,146 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 3908 transitions. [2021-11-23 01:57:17,146 INFO L471 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) [2021-11-23 01:57:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3908 transitions. [2021-11-23 01:57:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:57:17,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:17,160 INFO L514 BasicCegarLoop]: 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] [2021-11-23 01:57:17,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:57:17,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:57:17,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:57:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1790442611, now seen corresponding path program 1 times [2021-11-23 01:57:17,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:57:17,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920924715] [2021-11-23 01:57:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:17,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:57:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:57:17,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:57:17,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 01:57:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:18,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:57:18,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:57:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:57:18,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:57:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:57:19,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:57:19,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920924715] [2021-11-23 01:57:19,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920924715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:19,055 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:19,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-23 01:57:19,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402279569] [2021-11-23 01:57:19,056 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:19,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:57:19,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:57:19,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:57:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:19,059 INFO L87 Difference]: Start difference. First operand 2801 states and 3908 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-23 01:57:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:19,388 INFO L93 Difference]: Finished difference Result 5578 states and 7787 transitions. [2021-11-23 01:57:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:57:19,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 74 [2021-11-23 01:57:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:19,417 INFO L225 Difference]: With dead ends: 5578 [2021-11-23 01:57:19,417 INFO L226 Difference]: Without dead ends: 2801 [2021-11-23 01:57:19,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:57:19,431 INFO L933 BasicCegarLoop]: 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 [2021-11-23 01:57:19,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 7912 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:57:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-23 01:57:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-11-23 01:57:19,562 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) [2021-11-23 01:57:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3906 transitions. [2021-11-23 01:57:19,588 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3906 transitions. Word has length 74 [2021-11-23 01:57:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:19,589 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 3906 transitions. [2021-11-23 01:57:19,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-23 01:57:19,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3906 transitions. [2021-11-23 01:57:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 01:57:19,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:19,598 INFO L514 BasicCegarLoop]: 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] [2021-11-23 01:57:19,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 01:57:19,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:57:19,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:57:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1751657911, now seen corresponding path program 1 times [2021-11-23 01:57:19,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:57:19,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917191785] [2021-11-23 01:57:19,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:19,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:57:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:57:19,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:57:19,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 01:57:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:20,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 01:57:20,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:57:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:57:21,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:57:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:57:21,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:57:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917191785] [2021-11-23 01:57:21,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917191785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:21,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:21,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 01:57:21,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41511883] [2021-11-23 01:57:21,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:21,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:21,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:57:21,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:21,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:21,605 INFO L87 Difference]: Start difference. First operand 2801 states and 3906 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 01:57:23,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:23,162 INFO L93 Difference]: Finished difference Result 7582 states and 10942 transitions. [2021-11-23 01:57:23,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:23,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 89 [2021-11-23 01:57:23,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:23,203 INFO L225 Difference]: With dead ends: 7582 [2021-11-23 01:57:23,204 INFO L226 Difference]: Without dead ends: 4808 [2021-11-23 01:57:23,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:23,220 INFO L933 BasicCegarLoop]: 2551 mSDtfsCounter, 1372 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 5030 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:23,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1689 Valid, 5030 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:57:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2021-11-23 01:57:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 4792. [2021-11-23 01:57:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 3390 states have (on average 1.3545722713864308) internal successors, (4592), 3483 states have internal predecessors, (4592), 1217 states have call successors, (1217), 185 states have call predecessors, (1217), 184 states have return successors, (1224), 1195 states have call predecessors, (1224), 1215 states have call successors, (1224) [2021-11-23 01:57:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 7033 transitions. [2021-11-23 01:57:23,500 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 7033 transitions. Word has length 89 [2021-11-23 01:57:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:23,501 INFO L470 AbstractCegarLoop]: Abstraction has 4792 states and 7033 transitions. [2021-11-23 01:57:23,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 01:57:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 7033 transitions. [2021-11-23 01:57:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 01:57:23,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:23,512 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:23,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 01:57:23,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:57:23,727 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:57:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash 347747418, now seen corresponding path program 1 times [2021-11-23 01:57:23,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:57:23,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179313236] [2021-11-23 01:57:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:23,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:57:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:57:23,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:57:23,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 01:57:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:57:38,038 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:57:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:57:55,289 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-23 01:57:55,289 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 01:57:55,290 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:57:55,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 01:57:55,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:57:55,518 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 01:57:55,521 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:57:55,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:57:55 BoogieIcfgContainer [2021-11-23 01:57:55,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:57:55,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:57:55,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:57:55,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:57:55,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:14" (3/4) ... [2021-11-23 01:57:55,743 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 01:57:55,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:57:55,744 INFO L158 Benchmark]: Toolchain (without parser) took 71459.72ms. Allocated memory was 60.8MB in the beginning and 543.2MB in the end (delta: 482.3MB). Free memory was 39.0MB in the beginning and 380.4MB in the end (delta: -341.3MB). Peak memory consumption was 141.5MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,744 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:57:55,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3686.71ms. Allocated memory was 60.8MB in the beginning and 165.7MB in the end (delta: 104.9MB). Free memory was 38.7MB in the beginning and 66.1MB in the end (delta: -27.4MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 302.46ms. Allocated memory was 165.7MB in the beginning and 293.6MB in the end (delta: 127.9MB). Free memory was 66.1MB in the beginning and 210.6MB in the end (delta: -144.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,745 INFO L158 Benchmark]: Boogie Preprocessor took 251.90ms. Allocated memory is still 293.6MB. Free memory was 210.6MB in the beginning and 184.1MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,746 INFO L158 Benchmark]: RCFGBuilder took 26418.73ms. Allocated memory is still 293.6MB. Free memory was 184.1MB in the beginning and 93.7MB in the end (delta: 90.4MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,746 INFO L158 Benchmark]: TraceAbstraction took 40748.64ms. Allocated memory is still 543.2MB. Free memory was 439.0MB in the beginning and 380.4MB in the end (delta: 58.6MB). Peak memory consumption was 323.2MB. Max. memory is 16.1GB. [2021-11-23 01:57:55,746 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 543.2MB. Free memory is still 380.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:57:55,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3686.71ms. Allocated memory was 60.8MB in the beginning and 165.7MB in the end (delta: 104.9MB). Free memory was 38.7MB in the beginning and 66.1MB in the end (delta: -27.4MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 302.46ms. Allocated memory was 165.7MB in the beginning and 293.6MB in the end (delta: 127.9MB). Free memory was 66.1MB in the beginning and 210.6MB in the end (delta: -144.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 251.90ms. Allocated memory is still 293.6MB. Free memory was 210.6MB in the beginning and 184.1MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 26418.73ms. Allocated memory is still 293.6MB. Free memory was 184.1MB in the beginning and 93.7MB in the end (delta: 90.4MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. * TraceAbstraction took 40748.64ms. Allocated memory is still 543.2MB. Free memory was 439.0MB in the beginning and 380.4MB in the end (delta: 58.6MB). Peak memory consumption was 323.2MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 543.2MB. Free memory is still 380.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6167. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [\old(major)=108, \result=0, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, fops={66:0}, fops={66:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={524288:0}, arg0={524288:0}, arg0={524288:0}, arg1={20:0}, arg1={20:0}, arg2={90:0}, arg2={90:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp VAL [__key={90:0}, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}] [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [\result=0, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}, ptr={0:0}, tmp=0] [L7712] RET, EXPR IS_ERR((void const *)ppp_class) VAL [__key={90:0}, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, IS_ERR((void const *)ppp_class)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=2147483648] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(arg)=71, \old(cmd)=1074033753, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=71, \old(cmd)=1074033753, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(arg)=71, \old(cmd)=1074033753, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(arg)=71, \old(cmd)=1074033753, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6931] FCALL mutex_lock_nested(& ppp_mutex, 0U) VAL [\old(arg)=71, \old(cmd)=1074033753, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7014] FCALL might_fault() VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __this_module={524288:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7037] val = (int )__val_gu___1 VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7038] COND FALSE !(__ret_gu___1 != 0) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7043] CALL spin_lock_bh(& ppp->wlock) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7043] RET spin_lock_bh(& ppp->wlock) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7044] CALL spin_lock_bh(& ppp->rlock) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L7044] RET spin_lock_bh(& ppp->rlock) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, cflags=64, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7047] CALL spin_unlock_bh(& ppp->rlock) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7047] RET spin_unlock_bh(& ppp->rlock) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, cflags=64, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7048] CALL spin_unlock_bh(& ppp->wlock) VAL [__this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L7048] RET spin_unlock_bh(& ppp->wlock) VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, cflags=64, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7050] COND TRUE (cflags & 64) != 0 VAL [\old(arg)=71, \old(cmd)=1074033753, __mptr___1={-9223372036854775776:1}, __ret_gu___1=0, __this_module={524288:0}, __val_gu___1=0, arg=71, argp={0:71}, cflags=64, channel_count={62:0}, cmd=1074033753, code={90:0}, code___0={182:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={0:0}, file={0:0}, idle={78:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={82:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, val=0] [L7052] CALL ppp_ccp_closed(ppp) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9958] CALL spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L9959] CALL spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [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={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:0}, xstate={-9218868436145274880:0}] [L9969] CALL spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:0}, xstate={-9218868436145274880:0}] [L9970] CALL spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:0}, xstate={-9218868436145274880:0}] [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:0}, xcomp->comp_free={9223372036854775806:12}, xstate={-9218868436145274880:0}] [L9974] CALL (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9974] RET (*(xcomp->comp_free))(xstate) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={-9223372036854775776:1}, ppp={-9223372036854775776:1}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, rcomp={0:0}, rstate={0:0}, xcomp={0:0}, xcomp->comp_free={9223372036854775806:12}, xstate={-9218868436145274880:0}] [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={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854775808}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854775808}, module={0:-9223372036854775808}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={0:-9223372036854775808}, module={0:-9223372036854775808}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10848] CALL ldv_blast_assert() VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={524288:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 94 procedures, 1432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.5s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3671 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3353 mSDsluCounter, 17247 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10366 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 216 IncrementalHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 6881 mSDtfsCounter, 216 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4792occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 15.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2217 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 32/32 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 [2021-11-23 01:57:55,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a69135a-164f-4333-bbb0-06a9effe29f9/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample