./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:54:05,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:54:05,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:54:05,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:54:05,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:54:05,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:54:05,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:54:05,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:54:05,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:54:05,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:54:05,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:54:05,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:54:05,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:54:05,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:54:05,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:54:05,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:54:05,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:54:05,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:54:05,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:54:05,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:54:05,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:54:05,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:54:05,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:54:05,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:54:05,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:54:05,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:54:05,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:54:05,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:54:05,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:54:05,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:54:05,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:54:05,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:54:05,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:54:05,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:54:05,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:54:05,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:54:05,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:54:05,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:54:05,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:54:05,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:54:05,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:54:05,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:54:05,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:54:05,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:54:05,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:54:05,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:54:05,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:54:05,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:54:05,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:54:05,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:54:05,355 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:54:05,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:54:05,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:54:05,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:54:05,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:54:05,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:54:05,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:54:05,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:54:05,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:54:05,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:54:05,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:54:05,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:54:05,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:54:05,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:05,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:54:05,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:54:05,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:54:05,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:54:05,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:54:05,360 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:54:05,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:54:05,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:54:05,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2022-11-16 11:54:05,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:54:05,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:54:05,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:54:05,635 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:54:05,639 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:54:05,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 11:54:05,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/098b7d0ac/1d21bb381c4a45af8df540e1252167f5/FLAG4017c79c7 [2022-11-16 11:54:06,669 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:54:06,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 11:54:06,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/098b7d0ac/1d21bb381c4a45af8df540e1252167f5/FLAG4017c79c7 [2022-11-16 11:54:07,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/098b7d0ac/1d21bb381c4a45af8df540e1252167f5 [2022-11-16 11:54:07,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:54:07,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:54:07,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:07,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:54:07,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:54:07,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:07" (1/1) ... [2022-11-16 11:54:07,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581a20df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:07, skipping insertion in model container [2022-11-16 11:54:07,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:07" (1/1) ... [2022-11-16 11:54:07,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:54:07,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:54:10,532 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-16 11:54:10,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:10,659 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:54:11,455 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-16 11:54:11,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:11,679 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:54:11,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11 WrapperNode [2022-11-16 11:54:11,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:11,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:11,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:54:11,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:54:11,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:11,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:11,947 INFO L138 Inliner]: procedures = 426, calls = 3487, calls flagged for inlining = 207, calls inlined = 116, statements flattened = 4501 [2022-11-16 11:54:11,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:11,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:54:11,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:54:11,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:54:11,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:11,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:11,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:11,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:54:12,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:54:12,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:54:12,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:54:12,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (1/1) ... [2022-11-16 11:54:12,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:12,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:12,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:54:12,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:54:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-16 11:54:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-16 11:54:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-16 11:54:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2022-11-16 11:54:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2022-11-16 11:54:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-16 11:54:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-16 11:54:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 11:54:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 11:54:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2022-11-16 11:54:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2022-11-16 11:54:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 11:54:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 11:54:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2022-11-16 11:54:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2022-11-16 11:54:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:54:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:54:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2022-11-16 11:54:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2022-11-16 11:54:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2022-11-16 11:54:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2022-11-16 11:54:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 11:54:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 11:54:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2022-11-16 11:54:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2022-11-16 11:54:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:54:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:54:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2022-11-16 11:54:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2022-11-16 11:54:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-16 11:54:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-16 11:54:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 11:54:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 11:54:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 11:54:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 11:54:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2022-11-16 11:54:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2022-11-16 11:54:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:54:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:54:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2022-11-16 11:54:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2022-11-16 11:54:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:54:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-16 11:54:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-16 11:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:54:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 11:54:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 11:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 11:54:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 11:54:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 11:54:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 11:54:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:54:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:54:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:54:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-16 11:54:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-16 11:54:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:54:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:54:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:54:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2022-11-16 11:54:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2022-11-16 11:54:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-16 11:54:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-16 11:54:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2022-11-16 11:54:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2022-11-16 11:54:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2022-11-16 11:54:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2022-11-16 11:54:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 11:54:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 11:54:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 11:54:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2022-11-16 11:54:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2022-11-16 11:54:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:54:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2022-11-16 11:54:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2022-11-16 11:54:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-16 11:54:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-16 11:54:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-16 11:54:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-16 11:54:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2022-11-16 11:54:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2022-11-16 11:54:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 11:54:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 11:54:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:54:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:54:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:54:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:54:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:54:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:54:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:54:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:54:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2022-11-16 11:54:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2022-11-16 11:54:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:54:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:54:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-16 11:54:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-16 11:54:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2022-11-16 11:54:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2022-11-16 11:54:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 11:54:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 11:54:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-16 11:54:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-16 11:54:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-16 11:54:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-16 11:54:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 11:54:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 11:54:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-16 11:54:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-16 11:54:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-16 11:54:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-16 11:54:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2022-11-16 11:54:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2022-11-16 11:54:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-16 11:54:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-16 11:54:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:54:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:54:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:54:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:54:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:54:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:54:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-16 11:54:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-16 11:54:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 11:54:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 11:54:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2022-11-16 11:54:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2022-11-16 11:54:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2022-11-16 11:54:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 11:54:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-16 11:54:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2022-11-16 11:54:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:54:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2022-11-16 11:54:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2022-11-16 11:54:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 11:54:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 11:54:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2022-11-16 11:54:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2022-11-16 11:54:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 11:54:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 11:54:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:54:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:54:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:54:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:54:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 11:54:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 11:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-16 11:54:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-16 11:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 11:54:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 11:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2022-11-16 11:54:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2022-11-16 11:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 11:54:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 11:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:54:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:54:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-16 11:54:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-16 11:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2022-11-16 11:54:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2022-11-16 11:54:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 11:54:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 11:54:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 11:54:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 11:54:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-16 11:54:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-16 11:54:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:54:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:54:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 11:54:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 11:54:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-16 11:54:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-16 11:54:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:54:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2022-11-16 11:54:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2022-11-16 11:54:13,231 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:54:13,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:54:13,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:54:21,532 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:54:21,566 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:54:21,578 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:54:21,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:21 BoogieIcfgContainer [2022-11-16 11:54:21,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:54:21,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:54:21,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:54:21,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:54:21,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:54:07" (1/3) ... [2022-11-16 11:54:21,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f79ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:21, skipping insertion in model container [2022-11-16 11:54:21,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:11" (2/3) ... [2022-11-16 11:54:21,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f79ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:21, skipping insertion in model container [2022-11-16 11:54:21,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:21" (3/3) ... [2022-11-16 11:54:21,590 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 11:54:21,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:54:21,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:54:21,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:54:21,731 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e8e256d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:54:21,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:54:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 1306 states, 947 states have (on average 1.3252375923970432) internal successors, (1255), 973 states have internal predecessors, (1255), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) [2022-11-16 11:54:21,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:54:21,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:54:21,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:21,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:54:21,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:21,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2058962732, now seen corresponding path program 1 times [2022-11-16 11:54:21,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:21,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734374682] [2022-11-16 11:54:21,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:21,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:22,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734374682] [2022-11-16 11:54:22,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734374682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:22,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:22,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718910483] [2022-11-16 11:54:22,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:22,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:22,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:22,472 INFO L87 Difference]: Start difference. First operand has 1306 states, 947 states have (on average 1.3252375923970432) internal successors, (1255), 973 states have internal predecessors, (1255), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:22,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:54:22,865 INFO L93 Difference]: Finished difference Result 3902 states and 5473 transitions. [2022-11-16 11:54:22,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:22,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19 [2022-11-16 11:54:22,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:54:22,909 INFO L225 Difference]: With dead ends: 3902 [2022-11-16 11:54:22,909 INFO L226 Difference]: Without dead ends: 2551 [2022-11-16 11:54:22,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:22,937 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 1764 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:54:22,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3818 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:54:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2022-11-16 11:54:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2548. [2022-11-16 11:54:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1851 states have (on average 1.3084819016747704) internal successors, (2422), 1885 states have internal predecessors, (2422), 526 states have call successors, (526), 171 states have call predecessors, (526), 170 states have return successors, (524), 510 states have call predecessors, (524), 524 states have call successors, (524) [2022-11-16 11:54:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3472 transitions. [2022-11-16 11:54:23,192 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3472 transitions. Word has length 19 [2022-11-16 11:54:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:54:23,192 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 3472 transitions. [2022-11-16 11:54:23,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3472 transitions. [2022-11-16 11:54:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-16 11:54:23,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:54:23,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:23,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:54:23,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:54:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1213891953, now seen corresponding path program 1 times [2022-11-16 11:54:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:23,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967240260] [2022-11-16 11:54:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:23,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:54:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:54:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:54:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 11:54:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:54:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:54:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 11:54:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 11:54:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:54:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 11:54:24,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:24,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967240260] [2022-11-16 11:54:24,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967240260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:24,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:24,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:54:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927837181] [2022-11-16 11:54:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:54:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:54:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:54:24,013 INFO L87 Difference]: Start difference. First operand 2548 states and 3472 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 11:54:27,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:54:29,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:54:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:54:36,397 INFO L93 Difference]: Finished difference Result 6631 states and 9132 transitions. [2022-11-16 11:54:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:54:36,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2022-11-16 11:54:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:54:36,421 INFO L225 Difference]: With dead ends: 6631 [2022-11-16 11:54:36,421 INFO L226 Difference]: Without dead ends: 4086 [2022-11-16 11:54:36,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:54:36,434 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 2577 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 1421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 4163 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1421 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:54:36,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2677 Valid, 4163 Invalid, 3676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1421 Valid, 2254 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-16 11:54:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2022-11-16 11:54:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 3564. [2022-11-16 11:54:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 2614 states have (on average 1.3186687069625096) internal successors, (3447), 2659 states have internal predecessors, (3447), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 11:54:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4849 transitions. [2022-11-16 11:54:36,691 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4849 transitions. Word has length 106 [2022-11-16 11:54:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:54:36,692 INFO L495 AbstractCegarLoop]: Abstraction has 3564 states and 4849 transitions. [2022-11-16 11:54:36,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 11:54:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4849 transitions. [2022-11-16 11:54:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-16 11:54:36,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:54:36,700 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:36,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:54:36,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:54:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 612737822, now seen corresponding path program 1 times [2022-11-16 11:54:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:36,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173307195] [2022-11-16 11:54:36,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:36,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:54:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 11:54:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 11:54:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 11:54:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 11:54:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 11:54:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 11:54:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:54:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 11:54:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 11:54:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 11:54:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:54:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 11:54:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 11:54:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 11:54:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:37,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173307195] [2022-11-16 11:54:37,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173307195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:37,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:37,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:54:37,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475944003] [2022-11-16 11:54:37,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:37,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:54:37,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:37,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:54:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:54:37,588 INFO L87 Difference]: Start difference. First operand 3564 states and 4849 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 11:54:41,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:54:42,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:54:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:54:50,374 INFO L93 Difference]: Finished difference Result 7652 states and 10518 transitions. [2022-11-16 11:54:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:54:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 185 [2022-11-16 11:54:50,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:54:50,395 INFO L225 Difference]: With dead ends: 7652 [2022-11-16 11:54:50,396 INFO L226 Difference]: Without dead ends: 4085 [2022-11-16 11:54:50,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:54:50,411 INFO L413 NwaCegarLoop]: 1318 mSDtfsCounter, 561 mSDsluCounter, 4376 mSDsCounter, 0 mSdLazyCounter, 3413 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 5694 SdHoareTripleChecker+Invalid, 3756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 3413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:54:50,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 5694 Invalid, 3756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [343 Valid, 3413 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-11-16 11:54:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2022-11-16 11:54:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 3567. [2022-11-16 11:54:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 2617 states have (on average 1.3175391669850975) internal successors, (3448), 2662 states have internal predecessors, (3448), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 11:54:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4850 transitions. [2022-11-16 11:54:50,613 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4850 transitions. Word has length 185 [2022-11-16 11:54:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:54:50,613 INFO L495 AbstractCegarLoop]: Abstraction has 3567 states and 4850 transitions. [2022-11-16 11:54:50,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 11:54:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4850 transitions. [2022-11-16 11:54:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 11:54:50,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:54:50,621 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:50,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:54:50,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:54:50,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1511531193, now seen corresponding path program 1 times [2022-11-16 11:54:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:50,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902442019] [2022-11-16 11:54:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:54:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:54:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:54:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:54:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:54:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:54:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:54:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:54:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:54:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 11:54:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:54:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 11:54:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 11:54:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 11:54:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 11:54:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 11:54:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 11:54:51,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:51,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902442019] [2022-11-16 11:54:51,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902442019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:51,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:51,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:54:51,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133760919] [2022-11-16 11:54:51,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:51,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:54:51,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:51,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:54:51,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:54:51,894 INFO L87 Difference]: Start difference. First operand 3567 states and 4850 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-16 11:54:54,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:01,116 INFO L93 Difference]: Finished difference Result 10353 states and 14244 transitions. [2022-11-16 11:55:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:55:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 194 [2022-11-16 11:55:01,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:01,156 INFO L225 Difference]: With dead ends: 10353 [2022-11-16 11:55:01,157 INFO L226 Difference]: Without dead ends: 6789 [2022-11-16 11:55:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:55:01,175 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 4120 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 1792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4367 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 4786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1792 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:01,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4367 Valid, 3946 Invalid, 4786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1792 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-16 11:55:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-16 11:55:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 5858. [2022-11-16 11:55:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 4286 states have (on average 1.3133457769482035) internal successors, (5629), 4366 states have internal predecessors, (5629), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 413 states have return successors, (1156), 1122 states have call predecessors, (1156), 1156 states have call successors, (1156) [2022-11-16 11:55:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 7943 transitions. [2022-11-16 11:55:01,591 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 7943 transitions. Word has length 194 [2022-11-16 11:55:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:01,592 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 7943 transitions. [2022-11-16 11:55:01,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-16 11:55:01,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 7943 transitions. [2022-11-16 11:55:01,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-16 11:55:01,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:01,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:01,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:55:01,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:01,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1091060161, now seen corresponding path program 1 times [2022-11-16 11:55:01,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:01,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547238376] [2022-11-16 11:55:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:01,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:55:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:55:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:55:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:55:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:55:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:55:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:55:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 11:55:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:55:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 11:55:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 11:55:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-16 11:55:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 11:55:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:55:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 11:55:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 11:55:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 11:55:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 11:55:02,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:02,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547238376] [2022-11-16 11:55:02,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547238376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:02,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:02,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:55:02,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082370261] [2022-11-16 11:55:02,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:02,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:55:02,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:55:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:55:02,610 INFO L87 Difference]: Start difference. First operand 5858 states and 7943 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 11:55:11,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:14,803 INFO L93 Difference]: Finished difference Result 12649 states and 17361 transitions. [2022-11-16 11:55:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:55:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 225 [2022-11-16 11:55:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:14,846 INFO L225 Difference]: With dead ends: 12649 [2022-11-16 11:55:14,846 INFO L226 Difference]: Without dead ends: 6794 [2022-11-16 11:55:14,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:55:14,876 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 3000 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3209 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1271 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:14,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3209 Valid, 4229 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1271 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-11-16 11:55:14,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2022-11-16 11:55:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 5858. [2022-11-16 11:55:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 4286 states have (on average 1.311945870275315) internal successors, (5623), 4366 states have internal predecessors, (5623), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 413 states have return successors, (1156), 1122 states have call predecessors, (1156), 1156 states have call successors, (1156) [2022-11-16 11:55:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 7937 transitions. [2022-11-16 11:55:15,446 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 7937 transitions. Word has length 225 [2022-11-16 11:55:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:15,447 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 7937 transitions. [2022-11-16 11:55:15,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 11:55:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 7937 transitions. [2022-11-16 11:55:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-16 11:55:15,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:15,459 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:15,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:55:15,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:15,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:15,460 INFO L85 PathProgramCache]: Analyzing trace with hash -982960641, now seen corresponding path program 1 times [2022-11-16 11:55:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:15,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910465956] [2022-11-16 11:55:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:15,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:55:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:55:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:55:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:55:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:55:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:55:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:55:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 11:55:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:55:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 11:55:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 11:55:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-16 11:55:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 11:55:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 11:55:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 11:55:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 11:55:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 11:55:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 11:55:18,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910465956] [2022-11-16 11:55:18,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910465956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:18,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:18,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:55:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661630411] [2022-11-16 11:55:18,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:18,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:55:18,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:18,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:55:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:55:18,357 INFO L87 Difference]: Start difference. First operand 5858 states and 7937 transitions. Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 11:55:22,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:24,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:25,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:37,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:41,205 INFO L93 Difference]: Finished difference Result 14411 states and 20186 transitions. [2022-11-16 11:55:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:55:41,206 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) Word has length 225 [2022-11-16 11:55:41,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:41,255 INFO L225 Difference]: With dead ends: 14411 [2022-11-16 11:55:41,255 INFO L226 Difference]: Without dead ends: 8556 [2022-11-16 11:55:41,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:55:41,276 INFO L413 NwaCegarLoop]: 1793 mSDtfsCounter, 1759 mSDsluCounter, 16367 mSDsCounter, 0 mSdLazyCounter, 8529 mSolverCounterSat, 1018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 18160 SdHoareTripleChecker+Invalid, 9547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 8529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:41,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 18160 Invalid, 9547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1018 Valid, 8529 Invalid, 0 Unknown, 0 Unchecked, 21.9s Time] [2022-11-16 11:55:41,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8556 states. [2022-11-16 11:55:41,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8556 to 5880. [2022-11-16 11:55:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 4302 states have (on average 1.310785681078568) internal successors, (5639), 4382 states have internal predecessors, (5639), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 419 states have return successors, (1180), 1128 states have call predecessors, (1180), 1156 states have call successors, (1180) [2022-11-16 11:55:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 7977 transitions. [2022-11-16 11:55:41,757 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 7977 transitions. Word has length 225 [2022-11-16 11:55:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:41,759 INFO L495 AbstractCegarLoop]: Abstraction has 5880 states and 7977 transitions. [2022-11-16 11:55:41,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 11:55:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 7977 transitions. [2022-11-16 11:55:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-16 11:55:41,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:41,772 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:41,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:55:41,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1278899348, now seen corresponding path program 1 times [2022-11-16 11:55:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:41,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721881037] [2022-11-16 11:55:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:55:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:55:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:55:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:55:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:55:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:55:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:55:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:55:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 11:55:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:55:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:55:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:55:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:55:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 11:55:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 11:55:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 11:55:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 11:55:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 11:55:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 11:55:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 11:55:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 11:55:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 11:55:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-16 11:55:43,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:43,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721881037] [2022-11-16 11:55:43,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721881037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:43,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:43,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:55:43,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85800908] [2022-11-16 11:55:43,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:43,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:55:43,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:43,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:55:43,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:55:43,806 INFO L87 Difference]: Start difference. First operand 5880 states and 7977 transitions. Second operand has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:55:47,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:49,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:59,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:00,188 INFO L93 Difference]: Finished difference Result 14433 states and 20224 transitions. [2022-11-16 11:56:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:56:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 245 [2022-11-16 11:56:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:00,227 INFO L225 Difference]: With dead ends: 14433 [2022-11-16 11:56:00,227 INFO L226 Difference]: Without dead ends: 8556 [2022-11-16 11:56:00,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:56:00,246 INFO L413 NwaCegarLoop]: 1793 mSDtfsCounter, 2174 mSDsluCounter, 9190 mSDsCounter, 0 mSdLazyCounter, 5044 mSolverCounterSat, 1335 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 10983 SdHoareTripleChecker+Invalid, 6381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1335 IncrementalHoareTripleChecker+Valid, 5044 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:00,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 10983 Invalid, 6381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1335 Valid, 5044 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2022-11-16 11:56:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8556 states. [2022-11-16 11:56:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8556 to 5880. [2022-11-16 11:56:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 4302 states have (on average 1.310320781032078) internal successors, (5637), 4382 states have internal predecessors, (5637), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 419 states have return successors, (1180), 1128 states have call predecessors, (1180), 1156 states have call successors, (1180) [2022-11-16 11:56:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 7975 transitions. [2022-11-16 11:56:00,691 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 7975 transitions. Word has length 245 [2022-11-16 11:56:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:00,692 INFO L495 AbstractCegarLoop]: Abstraction has 5880 states and 7975 transitions. [2022-11-16 11:56:00,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:56:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 7975 transitions. [2022-11-16 11:56:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-16 11:56:00,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:00,703 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:56:00,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2140048942, now seen corresponding path program 1 times [2022-11-16 11:56:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:00,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072553395] [2022-11-16 11:56:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:56:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:56:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:56:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:56:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:56:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:56:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:56:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 11:56:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:56:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:56:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:56:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 11:56:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 11:56:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 11:56:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 11:56:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 11:56:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 11:56:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 11:56:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 11:56:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 11:56:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-16 11:56:02,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:02,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072553395] [2022-11-16 11:56:02,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072553395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:02,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:02,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:56:02,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86189646] [2022-11-16 11:56:02,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:02,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:56:02,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:02,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:56:02,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:56:02,284 INFO L87 Difference]: Start difference. First operand 5880 states and 7975 transitions. Second operand has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:56:06,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:07,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:08,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:18,358 INFO L93 Difference]: Finished difference Result 12705 states and 17425 transitions. [2022-11-16 11:56:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:56:18,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 245 [2022-11-16 11:56:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:18,390 INFO L225 Difference]: With dead ends: 12705 [2022-11-16 11:56:18,390 INFO L226 Difference]: Without dead ends: 6828 [2022-11-16 11:56:18,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:56:18,409 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 1784 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 5136 mSolverCounterSat, 1361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 8681 SdHoareTripleChecker+Invalid, 6497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1361 IncrementalHoareTripleChecker+Valid, 5136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:18,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 8681 Invalid, 6497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1361 Valid, 5136 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-11-16 11:56:18,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2022-11-16 11:56:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 5928. [2022-11-16 11:56:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 4332 states have (on average 1.309556786703601) internal successors, (5673), 4418 states have internal predecessors, (5673), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1192), 1134 states have call predecessors, (1192), 1162 states have call successors, (1192) [2022-11-16 11:56:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8029 transitions. [2022-11-16 11:56:18,920 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8029 transitions. Word has length 245 [2022-11-16 11:56:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:18,920 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 8029 transitions. [2022-11-16 11:56:18,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:56:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8029 transitions. [2022-11-16 11:56:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-16 11:56:18,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:18,931 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:18,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:56:18,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1422404804, now seen corresponding path program 1 times [2022-11-16 11:56:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:18,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446813919] [2022-11-16 11:56:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:56:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:56:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:56:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:56:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:56:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:56:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:56:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:56:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:56:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:56:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:56:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 11:56:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-16 11:56:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 11:56:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 11:56:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 11:56:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-16 11:56:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-16 11:56:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-16 11:56:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-16 11:56:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-16 11:56:20,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:20,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446813919] [2022-11-16 11:56:20,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446813919] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:56:20,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264055451] [2022-11-16 11:56:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:20,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:56:20,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:20,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:56:20,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:56:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:21,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 3969 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 11:56:21,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:56:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-16 11:56:21,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:56:21,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264055451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:21,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:56:21,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-11-16 11:56:21,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913725904] [2022-11-16 11:56:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:21,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:56:21,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:21,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:56:21,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:56:21,954 INFO L87 Difference]: Start difference. First operand 5928 states and 8029 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-16 11:56:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:22,568 INFO L93 Difference]: Finished difference Result 11884 states and 16095 transitions. [2022-11-16 11:56:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:56:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 246 [2022-11-16 11:56:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:22,591 INFO L225 Difference]: With dead ends: 11884 [2022-11-16 11:56:22,591 INFO L226 Difference]: Without dead ends: 5944 [2022-11-16 11:56:22,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:56:22,612 INFO L413 NwaCegarLoop]: 1746 mSDtfsCounter, 22 mSDsluCounter, 5225 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6971 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:22,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6971 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:56:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-11-16 11:56:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5919. [2022-11-16 11:56:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 4323 states have (on average 1.3083506823964839) internal successors, (5656), 4409 states have internal predecessors, (5656), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1192), 1134 states have call predecessors, (1192), 1162 states have call successors, (1192) [2022-11-16 11:56:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 8012 transitions. [2022-11-16 11:56:23,178 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 8012 transitions. Word has length 246 [2022-11-16 11:56:23,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:23,178 INFO L495 AbstractCegarLoop]: Abstraction has 5919 states and 8012 transitions. [2022-11-16 11:56:23,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-16 11:56:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 8012 transitions. [2022-11-16 11:56:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-16 11:56:23,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:23,191 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:23,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:56:23,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:56:23,405 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:23,405 INFO L85 PathProgramCache]: Analyzing trace with hash -124485667, now seen corresponding path program 1 times [2022-11-16 11:56:23,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:23,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005308243] [2022-11-16 11:56:23,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:23,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:56:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:56:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:56:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 11:56:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 11:56:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 11:56:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 11:56:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 11:56:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:56:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 11:56:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:56:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:56:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:56:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 11:56:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-16 11:56:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 11:56:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 11:56:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 11:56:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-16 11:56:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-16 11:56:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-16 11:56:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-16 11:56:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:25,056 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-16 11:56:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:25,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005308243] [2022-11-16 11:56:25,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005308243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:25,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:25,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:56:25,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979920631] [2022-11-16 11:56:25,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:25,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:56:25,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:25,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:56:25,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:56:25,060 INFO L87 Difference]: Start difference. First operand 5919 states and 8012 transitions. Second operand has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 11:56:29,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:31,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:32,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:38,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:39,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:40,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:49,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:52,926 INFO L93 Difference]: Finished difference Result 15340 states and 21358 transitions. [2022-11-16 11:56:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:56:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 266 [2022-11-16 11:56:52,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:52,961 INFO L225 Difference]: With dead ends: 15340 [2022-11-16 11:56:52,961 INFO L226 Difference]: Without dead ends: 9424 [2022-11-16 11:56:52,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:56:52,981 INFO L413 NwaCegarLoop]: 1875 mSDtfsCounter, 3096 mSDsluCounter, 13079 mSDsCounter, 0 mSdLazyCounter, 8000 mSolverCounterSat, 1638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 14954 SdHoareTripleChecker+Invalid, 9638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1638 IncrementalHoareTripleChecker+Valid, 8000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:52,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 14954 Invalid, 9638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1638 Valid, 8000 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2022-11-16 11:56:52,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2022-11-16 11:56:53,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 6574. [2022-11-16 11:56:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6574 states, 4806 states have (on average 1.3052434456928839) internal successors, (6273), 4897 states have internal predecessors, (6273), 1265 states have call successors, (1265), 484 states have call predecessors, (1265), 502 states have return successors, (1300), 1241 states have call predecessors, (1300), 1263 states have call successors, (1300) [2022-11-16 11:56:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6574 states to 6574 states and 8838 transitions. [2022-11-16 11:56:53,588 INFO L78 Accepts]: Start accepts. Automaton has 6574 states and 8838 transitions. Word has length 266 [2022-11-16 11:56:53,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:53,589 INFO L495 AbstractCegarLoop]: Abstraction has 6574 states and 8838 transitions. [2022-11-16 11:56:53,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 11:56:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6574 states and 8838 transitions. [2022-11-16 11:56:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-16 11:56:53,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:53,604 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:53,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:56:53,604 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:53,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:53,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1965340060, now seen corresponding path program 1 times [2022-11-16 11:56:53,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:53,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430258319] [2022-11-16 11:56:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:53,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:56:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:56:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 11:56:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:56:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:56:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:56:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:56:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 11:56:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:56:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:56:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:56:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 11:56:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:56:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:56:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:56:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:56:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 11:56:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 11:56:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-11-16 11:56:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 11:56:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-16 11:56:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 11:56:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-16 11:56:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-16 11:56:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-16 11:56:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:56:55,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:55,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430258319] [2022-11-16 11:56:55,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430258319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:56:55,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603593402] [2022-11-16 11:56:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:55,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:56:55,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:55,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:56:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:56:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:57,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 4092 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 11:56:57,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:56:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 11:56:57,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:56:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:56:57,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603593402] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:56:57,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:56:57,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 19 [2022-11-16 11:56:57,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702099212] [2022-11-16 11:56:57,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:56:57,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:56:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:57,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:56:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:56:57,993 INFO L87 Difference]: Start difference. First operand 6574 states and 8838 transitions. Second operand has 19 states, 17 states have (on average 11.647058823529411) internal successors, (198), 13 states have internal predecessors, (198), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:57:02,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:10,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:57:13,022 INFO L93 Difference]: Finished difference Result 14176 states and 19273 transitions. [2022-11-16 11:57:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:57:13,022 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 11.647058823529411) internal successors, (198), 13 states have internal predecessors, (198), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 272 [2022-11-16 11:57:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:57:13,060 INFO L225 Difference]: With dead ends: 14176 [2022-11-16 11:57:13,061 INFO L226 Difference]: Without dead ends: 7514 [2022-11-16 11:57:13,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 609 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:57:13,084 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 1520 mSDsluCounter, 9388 mSDsCounter, 0 mSdLazyCounter, 6104 mSolverCounterSat, 1081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 10673 SdHoareTripleChecker+Invalid, 7185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1081 IncrementalHoareTripleChecker+Valid, 6104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:57:13,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 10673 Invalid, 7185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1081 Valid, 6104 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-11-16 11:57:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7514 states. [2022-11-16 11:57:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7514 to 6567. [2022-11-16 11:57:13,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6567 states, 4806 states have (on average 1.3037869330004161) internal successors, (6266), 4890 states have internal predecessors, (6266), 1265 states have call successors, (1265), 484 states have call predecessors, (1265), 495 states have return successors, (1293), 1241 states have call predecessors, (1293), 1263 states have call successors, (1293) [2022-11-16 11:57:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 8824 transitions. [2022-11-16 11:57:13,772 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 8824 transitions. Word has length 272 [2022-11-16 11:57:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:57:13,774 INFO L495 AbstractCegarLoop]: Abstraction has 6567 states and 8824 transitions. [2022-11-16 11:57:13,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 11.647058823529411) internal successors, (198), 13 states have internal predecessors, (198), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:57:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 8824 transitions. [2022-11-16 11:57:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-16 11:57:13,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:57:13,790 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:57:13,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 11:57:14,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:57:14,007 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:57:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1290602674, now seen corresponding path program 2 times [2022-11-16 11:57:14,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:14,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746442482] [2022-11-16 11:57:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:14,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:57:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:57:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 11:57:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:57:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:57:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:57:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:57:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 11:57:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:57:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:57:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:57:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 11:57:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:57:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:57:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:57:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 11:57:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-16 11:57:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 11:57:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-16 11:57:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 11:57:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-16 11:57:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 11:57:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-16 11:57:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-16 11:57:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:57:15,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:15,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746442482] [2022-11-16 11:57:15,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746442482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:57:15,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369009901] [2022-11-16 11:57:15,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:57:15,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:57:15,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:57:15,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:57:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:58:34,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:58:34,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:58:34,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 4107 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 11:58:34,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:58:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 11:58:34,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:58:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:58:35,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369009901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:58:35,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:58:35,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2022-11-16 11:58:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278056826] [2022-11-16 11:58:35,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:58:35,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:58:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:58:35,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:58:35,206 INFO L87 Difference]: Start difference. First operand 6567 states and 8824 transitions. Second operand has 22 states, 20 states have (on average 10.05) internal successors, (201), 16 states have internal predecessors, (201), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:58:41,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:42,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:44,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:58:59,649 INFO L93 Difference]: Finished difference Result 14155 states and 19219 transitions. [2022-11-16 11:58:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:58:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 10.05) internal successors, (201), 16 states have internal predecessors, (201), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 273 [2022-11-16 11:58:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:58:59,678 INFO L225 Difference]: With dead ends: 14155 [2022-11-16 11:58:59,678 INFO L226 Difference]: Without dead ends: 7535 [2022-11-16 11:58:59,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 609 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=224, Invalid=1182, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 11:58:59,695 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 1381 mSDsluCounter, 12560 mSDsCounter, 0 mSdLazyCounter, 8342 mSolverCounterSat, 1039 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 13844 SdHoareTripleChecker+Invalid, 9383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1039 IncrementalHoareTripleChecker+Valid, 8342 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:58:59,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 13844 Invalid, 9383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1039 Valid, 8342 Invalid, 2 Unknown, 0 Unchecked, 23.0s Time] [2022-11-16 11:58:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7535 states. [2022-11-16 11:59:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7535 to 6588. [2022-11-16 11:59:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6588 states, 4825 states have (on average 1.3030051813471502) internal successors, (6287), 4909 states have internal predecessors, (6287), 1265 states have call successors, (1265), 486 states have call predecessors, (1265), 497 states have return successors, (1293), 1241 states have call predecessors, (1293), 1263 states have call successors, (1293) [2022-11-16 11:59:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6588 states to 6588 states and 8845 transitions. [2022-11-16 11:59:00,297 INFO L78 Accepts]: Start accepts. Automaton has 6588 states and 8845 transitions. Word has length 273 [2022-11-16 11:59:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:00,298 INFO L495 AbstractCegarLoop]: Abstraction has 6588 states and 8845 transitions. [2022-11-16 11:59:00,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 10.05) internal successors, (201), 16 states have internal predecessors, (201), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:59:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 6588 states and 8845 transitions. [2022-11-16 11:59:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-16 11:59:00,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:00,310 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:00,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:59:00,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 11:59:00,536 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:00,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1848580188, now seen corresponding path program 3 times [2022-11-16 11:59:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:00,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498598201] [2022-11-16 11:59:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:59:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:59:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 11:59:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:59:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:59:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:59:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:59:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 11:59:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:59:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:59:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:59:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 11:59:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:59:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:59:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:59:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:59:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 11:59:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 11:59:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-16 11:59:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 11:59:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-16 11:59:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-11-16 11:59:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-16 11:59:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-16 11:59:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-16 11:59:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:59:02,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:02,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498598201] [2022-11-16 11:59:02,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498598201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:59:02,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848582790] [2022-11-16 11:59:02,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:59:02,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:59:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:59:02,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:59:02,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:59:25,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 11:59:25,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:59:25,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 4122 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:59:25,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:59:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 52 proven. 6 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 11:59:25,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:59:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 11:59:26,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848582790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:59:26,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:59:26,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 25 [2022-11-16 11:59:26,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289109125] [2022-11-16 11:59:26,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:59:26,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:59:26,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:26,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:59:26,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:59:26,614 INFO L87 Difference]: Start difference. First operand 6588 states and 8845 transitions. Second operand has 25 states, 23 states have (on average 8.869565217391305) internal successors, (204), 19 states have internal predecessors, (204), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:59:32,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:59:34,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:59:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:48,486 INFO L93 Difference]: Finished difference Result 14189 states and 19251 transitions. [2022-11-16 11:59:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:59:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 8.869565217391305) internal successors, (204), 19 states have internal predecessors, (204), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 274 [2022-11-16 11:59:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:48,510 INFO L225 Difference]: With dead ends: 14189 [2022-11-16 11:59:48,510 INFO L226 Difference]: Without dead ends: 7544 [2022-11-16 11:59:48,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 608 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=193, Invalid=1213, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 11:59:48,527 INFO L413 NwaCegarLoop]: 1286 mSDtfsCounter, 2236 mSDsluCounter, 15667 mSDsCounter, 0 mSdLazyCounter, 9952 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 16953 SdHoareTripleChecker+Invalid, 11680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 9952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:59:48,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 16953 Invalid, 11680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1728 Valid, 9952 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2022-11-16 11:59:48,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-11-16 11:59:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 6597. [2022-11-16 11:59:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 4834 states have (on average 1.3024410426148116) internal successors, (6296), 4918 states have internal predecessors, (6296), 1265 states have call successors, (1265), 486 states have call predecessors, (1265), 497 states have return successors, (1293), 1241 states have call predecessors, (1293), 1263 states have call successors, (1293) [2022-11-16 11:59:49,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 8854 transitions. [2022-11-16 11:59:49,019 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 8854 transitions. Word has length 274 [2022-11-16 11:59:49,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:49,020 INFO L495 AbstractCegarLoop]: Abstraction has 6597 states and 8854 transitions. [2022-11-16 11:59:49,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 8.869565217391305) internal successors, (204), 19 states have internal predecessors, (204), 4 states have call successors, (68), 8 states have call predecessors, (68), 6 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-11-16 11:59:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 8854 transitions. [2022-11-16 11:59:49,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-16 11:59:49,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:49,034 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:49,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:59:49,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:59:49,235 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1966013938, now seen corresponding path program 4 times [2022-11-16 11:59:49,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:49,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983957081] [2022-11-16 11:59:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:49,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:59:54,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:59:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:59:56,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:59:56,901 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:59:56,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:59:56,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:59:56,907 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:56,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:59:56,995 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 11:59:57,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:59:57 BoogieIcfgContainer [2022-11-16 11:59:57,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:59:57,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:59:57,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:59:57,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:59:57,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:21" (3/4) ... [2022-11-16 11:59:57,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:59:57,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:59:57,266 INFO L158 Benchmark]: Toolchain (without parser) took 350213.41ms. Allocated memory was 113.2MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 78.2MB in the beginning and 599.2MB in the end (delta: -521.0MB). Peak memory consumption was 700.3MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,267 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:59:57,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4627.36ms. Allocated memory was 113.2MB in the beginning and 281.0MB in the end (delta: 167.8MB). Free memory was 77.8MB in the beginning and 170.6MB in the end (delta: -92.8MB). Peak memory consumption was 155.0MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 264.19ms. Allocated memory is still 281.0MB. Free memory was 170.6MB in the beginning and 142.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,268 INFO L158 Benchmark]: Boogie Preprocessor took 241.81ms. Allocated memory is still 281.0MB. Free memory was 142.3MB in the beginning and 114.8MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,268 INFO L158 Benchmark]: RCFGBuilder took 9391.76ms. Allocated memory was 281.0MB in the beginning and 824.2MB in the end (delta: 543.2MB). Free memory was 114.8MB in the beginning and 473.4MB in the end (delta: -358.7MB). Peak memory consumption was 301.4MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,269 INFO L158 Benchmark]: TraceAbstraction took 335677.40ms. Allocated memory was 824.2MB in the beginning and 1.3GB in the end (delta: 509.6MB). Free memory was 472.4MB in the beginning and 599.2MB in the end (delta: -126.8MB). Peak memory consumption was 578.9MB. Max. memory is 16.1GB. [2022-11-16 11:59:57,269 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 1.3GB. Free memory is still 599.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:59:57,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4627.36ms. Allocated memory was 113.2MB in the beginning and 281.0MB in the end (delta: 167.8MB). Free memory was 77.8MB in the beginning and 170.6MB in the end (delta: -92.8MB). Peak memory consumption was 155.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 264.19ms. Allocated memory is still 281.0MB. Free memory was 170.6MB in the beginning and 142.3MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 241.81ms. Allocated memory is still 281.0MB. Free memory was 142.3MB in the beginning and 114.8MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 9391.76ms. Allocated memory was 281.0MB in the beginning and 824.2MB in the end (delta: 543.2MB). Free memory was 114.8MB in the beginning and 473.4MB in the end (delta: -358.7MB). Peak memory consumption was 301.4MB. Max. memory is 16.1GB. * TraceAbstraction took 335677.40ms. Allocated memory was 824.2MB in the beginning and 1.3GB in the end (delta: 509.6MB). Free memory was 472.4MB in the beginning and 599.2MB in the end (delta: -126.8MB). Peak memory consumption was 578.9MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 1.3GB. Free memory is still 599.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 13209]: 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 10111, overapproximation of bitwiseOr at line 10305, overapproximation of bitwiseAnd at line 10785. Possible FailurePath: [L6789] struct timer_list *ldv_timer_list_1 ; [L6780] struct xenbus_device *netback_driver_group0 ; [L6777] struct file *xenvif_dbg_io_ring_ops_fops_group2 ; [L6790] int ldv_state_variable_4 ; [L12449-L12454] static struct net_device_ops const xenvif_netdev_ops = {0, 0, & xenvif_open, & xenvif_close, (netdev_tx_t (*)(struct sk_buff * , struct net_device * ))(& xenvif_start_xmit), 0, 0, 0, & eth_mac_addr, & eth_validate_addr, 0, 0, & xenvif_change_mtu, 0, 0, 0, & xenvif_get_stats, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xenvif_fix_features, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6782] int ldv_state_variable_5 ; [L7500] static unsigned int fatal_skb_slots = 20U; [L6776] int LDV_IN_INTERRUPT = 1; [L6778] struct net_device *xenvif_netdev_ops_group1 ; [L11582-L11583] static struct xenbus_device_id const netback_ids[2U] = { {{'v', 'i', 'f', '\000'}}, {{'\000'}}}; [L10523-L10526] static struct file_operations const xenvif_dbg_io_ring_ops_fops = {& __this_module, & seq_lseek, & seq_read, & xenvif_write_io_ring, 0, 0, 0, 0, 0, 0, 0, 0, & xenvif_dump_open, 0, & single_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6787] int ref_cnt ; [L6785] int ldv_timer_state_1 = 0; [L7497] bool separate_tx_rx_irq = 1; [L6784] struct net_device *xenvif_ethtool_ops_group0 ; [L12362-L12371] static struct xenvif_stat const xenvif_stats[5U] = { {{'r', 'x', '_', 'g', 's', 'o', '_', 'c', 'h', 'e', 'c', 'k', 's', 'u', 'm', '_', 'f', 'i', 'x', 'u', 'p', '\000'}, 16U}, {{'t', 'x', '_', 'z', 'e', 'r', 'o', 'c', 'o', 'p', 'y', '_', 's', 'e', 'n', 't', '\000'}, 24U}, {{'t', 'x', '_', 'z', 'e', 'r', 'o', 'c', 'o', 'p', 'y', '_', 's', 'u', 'c', 'c', 'e', 's', 's', '\000'}, 32U}, {{'t', 'x', '_', 'z', 'e', 'r', 'o', 'c', 'o', 'p', 'y', '_', 'f', 'a', 'i', 'l', '\000'}, 40U}, {{'t', 'x', '_', 'f', 'r', 'a', 'g', '_', 'o', 'v', 'e', 'r', 'f', 'l', 'o', 'w', '\000'}, 48U}}; [L10411] struct dentry *xen_netback_dbg_root = (struct dentry *)0; [L7499] unsigned int rx_stall_timeout_msecs = 60000U; [L11602] int ldv_retval_0 ; [L10142] int ldv_retval_1 ; [L12445-L12448] static struct ethtool_ops const xenvif_ethtool_ops = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & ethtool_op_get_link, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xenvif_get_strings, 0, & xenvif_get_ethtool_stats, 0, 0, 0, 0, & xenvif_get_sset_count, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L12857] int ldv_retval_2 ; [L13248] int ldv_module_refcounter = 1; [L12856] int ldv_retval_3 ; [L11603] int ldv_retval_4 ; [L6786] int ldv_state_variable_2 ; [L6783] int ldv_state_variable_3 ; [L6779] struct inode *xenvif_dbg_io_ring_ops_fops_group1 ; [L6781] int ldv_state_variable_0 ; [L6788] int ldv_state_variable_1 ; [L7498] unsigned int rx_drain_timeout_msecs = 10000U; [L7425] unsigned int xenvif_max_queues ; [L11584-L11587] static struct xenbus_driver netback_driver = {0, (struct xenbus_device_id const *)(& netback_ids), & netback_probe, & frontend_changed, & netback_remove, 0, 0, & netback_uevent, {0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0, 0}; VAL [__this_module={255:-254}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10151] int tmp ; [L10152] int tmp___0 ; [L10154] FCALL ldv_initialize() [L10155] ldv_state_variable_4 = 0 [L10156] ldv_state_variable_1 = 1 [L10157] ref_cnt = 0 [L10158] ldv_state_variable_0 = 1 [L10159] ldv_state_variable_3 = 0 [L10160] ldv_state_variable_2 = 0 [L10161] ldv_state_variable_5 = 0 VAL [__this_module={255:-254}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10163] tmp = __VERIFIER_nondet_int() [L10165] case 0: [L10171] case 1: [L10173] case 2: VAL [__this_module={255:-254}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=2, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10174] COND TRUE ldv_state_variable_0 != 0 [L10175] tmp___0 = __VERIFIER_nondet_int() [L10177] case 0: [L10185] case 1: VAL [__this_module={255:-254}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=2, tmp___0=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10186] COND TRUE ldv_state_variable_0 == 1 [L10187] CALL, EXPR netback_init() [L10090] int rc ; [L10091] long tmp ; [L10092] bool tmp___0 ; [L10094] rc = 0 VAL [__this_module={255:-254}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10095] COND FALSE !((unsigned int )xen_domain_type == 0U) [L10099] CALL, EXPR cpumask_weight(cpu_online_mask) [L6561] int tmp ; [L6563] CALL, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), (unsigned int )nr_cpu_ids) [L6551] int tmp___0 ; [L6553] CALL, EXPR __bitmap_weight(src, nbits) [L13332] return __VERIFIER_nondet_int(); [L6553] RET, EXPR __bitmap_weight(src, nbits) [L6553] tmp___0 = __bitmap_weight(src, nbits) [L6554] return (tmp___0); VAL [\old(nbits)=261, \result=245, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, nbits=261, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, src={73786976294838206728:73786976294838206732}, src={73786976294838206728:73786976294838206732}, tmp___0=245, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6563] RET, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), (unsigned int )nr_cpu_ids) [L6563] tmp = bitmap_weight((unsigned long const *)(& srcp->bits), (unsigned int )nr_cpu_ids) [L6564] return ((unsigned int )tmp); VAL [\result=245, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, srcp={73786976294838206728:73786976294838206732}, srcp={73786976294838206728:73786976294838206732}, tmp=245, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=0, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10099] RET, EXPR cpumask_weight(cpu_online_mask) [L10099] xenvif_max_queues = cpumask_weight(cpu_online_mask) [L10100] COND FALSE !(fatal_skb_slots <= 17U) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10106] CALL, EXPR xenvif_xenbus_init() [L11590] int tmp ; [L11592] CALL, EXPR __xenbus_register_backend(& netback_driver, & __this_module, "xen_netback") [L13376] return __VERIFIER_nondet_int(); [L11592] RET, EXPR __xenbus_register_backend(& netback_driver, & __this_module, "xen_netback") [L11592] tmp = __xenbus_register_backend(& netback_driver, & __this_module, "xen_netback") [L11593] return (tmp); VAL [\result=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10106] RET, EXPR xenvif_xenbus_init() [L10106] rc = xenvif_xenbus_init() [L10107] COND FALSE !(rc != 0) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10111] CALL, EXPR debugfs_create_dir("xen-netback", (struct dentry *)0) VAL [__this_module={255:-254}, arg0={69:0}, arg1={0:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13419] CALL, EXPR ldv_malloc(sizeof(struct dentry)) VAL [\old(size)=300, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6694] void *p ; [L6695] void *tmp ; [L6696] int tmp___0 ; [L6698] tmp___0 = __VERIFIER_nondet_int() [L6699] COND TRUE tmp___0 != 0 [L6700] return ((void *)0); VAL [\old(size)=300, \result={0:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=300, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13419] RET, EXPR ldv_malloc(sizeof(struct dentry)) VAL [__this_module={255:-254}, arg0={69:0}, arg0={69:0}, arg1={0:0}, arg1={0:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct dentry))={0:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13419] return ldv_malloc(sizeof(struct dentry)); [L10111] RET, EXPR debugfs_create_dir("xen-netback", (struct dentry *)0) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, debugfs_create_dir("xen-netback", (struct dentry *)0)={0:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10111] xen_netback_dbg_root = debugfs_create_dir("xen-netback", (struct dentry *)0) [L10112] CALL, EXPR IS_ERR_OR_NULL((void const *)xen_netback_dbg_root) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10251] bool tmp ; [L10253] CALL, EXPR ldv_is_err_or_null(ptr) [L13232] bool tmp ; [L13233] int tmp___0 ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13235] COND TRUE (unsigned long )ptr == (unsigned long )((void const *)0) [L13236] tmp___0 = 1 VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13245] return ((bool )tmp___0); VAL [\result=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10253] RET, EXPR ldv_is_err_or_null(ptr) [L10253] tmp = ldv_is_err_or_null(ptr) [L10254] return (tmp); VAL [\result=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10112] RET, EXPR IS_ERR_OR_NULL((void const *)xen_netback_dbg_root) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, IS_ERR_OR_NULL((void const *)xen_netback_dbg_root)=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10112] tmp___0 = IS_ERR_OR_NULL((void const *)xen_netback_dbg_root) [L10113] COND TRUE (int )tmp___0 VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10114] CALL, EXPR PTR_ERR((void const *)xen_netback_dbg_root) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10243] long tmp ; [L10245] CALL, EXPR ldv_ptr_err(ptr) [L13227] return ((long )(2012UL - (unsigned long )ptr)); VAL [\result=2012, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10245] RET, EXPR ldv_ptr_err(ptr) [L10245] tmp = ldv_ptr_err(ptr) [L10246] return (tmp); VAL [\result=2012, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={0:0}, ptr={0:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=2012, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10114] RET, EXPR PTR_ERR((void const *)xen_netback_dbg_root) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, PTR_ERR((void const *)xen_netback_dbg_root)=2012, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10114] tmp = PTR_ERR((void const *)xen_netback_dbg_root) [L10118] return (0); VAL [\result=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, rc=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=2012, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10187] RET, EXPR netback_init() [L10187] ldv_retval_1 = netback_init() [L10188] COND TRUE ldv_retval_1 == 0 [L10189] ldv_state_variable_0 = 3 [L10190] ldv_state_variable_5 = 1 [L10191] CALL ldv_file_operations_5() [L11615] void *tmp ; [L11616] void *tmp___0 ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11618] CALL, EXPR ldv_init_zalloc(1000UL) VAL [\old(size)=1000, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1000, __this_module={255:-254}, calloc(1UL, size)={-18446744073709551617:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1000, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=1000, __this_module={255:-254}, calloc(1UL, size)={-18446744073709551617:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-18446744073709551617:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1000, tmp={-18446744073709551617:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1000, __this_module={255:-254}, calloc(1UL, size)={-18446744073709551617:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-18446744073709551617:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1000, tmp={-18446744073709551617:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=1000, \result={-18446744073709551617:0}, __this_module={255:-254}, calloc(1UL, size)={-18446744073709551617:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-18446744073709551617:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1000, tmp={-18446744073709551617:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11618] RET, EXPR ldv_init_zalloc(1000UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1000UL)={-18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={0:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11618] tmp = ldv_init_zalloc(1000UL) [L11619] xenvif_dbg_io_ring_ops_fops_group1 = (struct inode *)tmp VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-18446744073709551617:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11620] CALL, EXPR ldv_init_zalloc(504UL) VAL [\old(size)=504, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=504, __this_module={255:-254}, calloc(1UL, size)={-36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=504, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=504, __this_module={255:-254}, calloc(1UL, size)={-36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=504, tmp={-36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=504, __this_module={255:-254}, calloc(1UL, size)={-36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=504, tmp={-36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=504, \result={-36893488147419103233:0}, __this_module={255:-254}, calloc(1UL, size)={-36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=504, tmp={-36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11620] RET, EXPR ldv_init_zalloc(504UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(504UL)={-36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-18446744073709551617:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={0:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11620] tmp___0 = ldv_init_zalloc(504UL) [L11621] xenvif_dbg_io_ring_ops_fops_group2 = (struct file *)tmp___0 VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10191] RET ldv_file_operations_5() [L10192] ldv_state_variable_3 = 1 [L10193] CALL ldv_initialize_ethtool_ops_3() [L12896] void *tmp ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12898] CALL, EXPR ldv_init_zalloc(3008UL) VAL [\old(size)=3008, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=3008, __this_module={255:-254}, calloc(1UL, size)={55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=3008, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=3008, __this_module={255:-254}, calloc(1UL, size)={55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=3008, tmp={55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=3008, __this_module={255:-254}, calloc(1UL, size)={55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=3008, tmp={55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=3008, \result={55340232221128654849:0}, __this_module={255:-254}, calloc(1UL, size)={55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=3008, tmp={55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12898] RET, EXPR ldv_init_zalloc(3008UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(3008UL)={55340232221128654849:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={0:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12898] tmp = ldv_init_zalloc(3008UL) [L12899] xenvif_ethtool_ops_group0 = (struct net_device *)tmp VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10193] RET ldv_initialize_ethtool_ops_3() [L10194] ldv_state_variable_4 = 1 [L10195] CALL ldv_initialize_xenbus_driver_4() [L11606] void *tmp ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11608] CALL, EXPR ldv_init_zalloc(1664UL) VAL [\old(size)=1664, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1664, __this_module={255:-254}, calloc(1UL, size)={73786976294838206465:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1664, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=1664, __this_module={255:-254}, calloc(1UL, size)={73786976294838206465:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={73786976294838206465:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1664, tmp={73786976294838206465:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1664, __this_module={255:-254}, calloc(1UL, size)={73786976294838206465:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={73786976294838206465:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1664, tmp={73786976294838206465:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=1664, \result={73786976294838206465:0}, __this_module={255:-254}, calloc(1UL, size)={73786976294838206465:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={73786976294838206465:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=1664, tmp={73786976294838206465:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11608] RET, EXPR ldv_init_zalloc(1664UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1664UL)={73786976294838206465:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={0:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11608] tmp = ldv_init_zalloc(1664UL) [L11609] netback_driver_group0 = (struct xenbus_device *)tmp VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={73786976294838206465:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10195] RET ldv_initialize_xenbus_driver_4() [L10198] COND FALSE !(ldv_retval_1 != 0) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=2, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10163] tmp = __VERIFIER_nondet_int() [L10165] case 0: VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=0, tmp___0=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10166] COND TRUE ldv_state_variable_4 != 0 [L10167] CALL ldv_main_exported_4() [L11627] struct xenbus_device_id *ldvarg2 ; [L11628] void *tmp ; [L11629] enum xenbus_state ldvarg0 ; [L11630] struct kobj_uevent_env *ldvarg1 ; [L11631] void *tmp___0 ; [L11632] int tmp___1 ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11634] CALL, EXPR ldv_init_zalloc(32UL) VAL [\old(size)=32, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=32, __this_module={255:-254}, calloc(1UL, size)={36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=32, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=32, __this_module={255:-254}, calloc(1UL, size)={36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=32, tmp={36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=32, __this_module={255:-254}, calloc(1UL, size)={36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=32, tmp={36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=32, \result={36893488147419103233:0}, __this_module={255:-254}, calloc(1UL, size)={36893488147419103233:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={36893488147419103233:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=32, tmp={36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11634] RET, EXPR ldv_init_zalloc(32UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(32UL)={36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11634] tmp = ldv_init_zalloc(32UL) [L11635] ldvarg2 = (struct xenbus_device_id *)tmp VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, ldvarg2={36893488147419103233:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11636] CALL, EXPR ldv_init_zalloc(2336UL) VAL [\old(size)=2336, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6730] void *p ; [L6731] void *tmp ; [L6733] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=2336, __this_module={255:-254}, calloc(1UL, size)={-55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=2336, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6733] tmp = calloc(1UL, size) [L6734] p = tmp VAL [\old(size)=2336, __this_module={255:-254}, calloc(1UL, size)={-55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=2336, tmp={-55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6735] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=2336, __this_module={255:-254}, calloc(1UL, size)={-55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=2336, tmp={-55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6736] return (p); VAL [\old(size)=2336, \result={-55340232221128654849:0}, __this_module={255:-254}, calloc(1UL, size)={-55340232221128654849:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-55340232221128654849:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=2336, tmp={-55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11636] RET, EXPR ldv_init_zalloc(2336UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_init_zalloc(2336UL)={-55340232221128654849:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, ldvarg2={36893488147419103233:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={36893488147419103233:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11636] tmp___0 = ldv_init_zalloc(2336UL) [L11637] ldvarg1 = (struct kobj_uevent_env *)tmp___0 VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, ldvarg1={-55340232221128654849:0}, ldvarg2={36893488147419103233:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={36893488147419103233:0}, tmp___0={-55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11638] CALL ldv_memset((void *)(& ldvarg0), 0, 4UL) VAL [\old(c)=0, \old(n)=4, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, s={73786976294838206710:0}, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6741] void *tmp ; VAL [\old(c)=0, \old(n)=4, __this_module={255:-254}, c=0, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=4, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, s={73786976294838206710:0}, s={73786976294838206710:0}, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6743] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=4, __this_module={255:-254}, c=0, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, memset(s, c, n)={73786976294838206710:0}, n=4, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, s={73786976294838206710:0}, s={73786976294838206710:0}, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6743] tmp = memset(s, c, n) [L6744] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={73786976294838206710:0}, __this_module={255:-254}, c=0, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=4, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, s={73786976294838206710:0}, s={73786976294838206710:0}, separate_tx_rx_irq=1, tmp={73786976294838206710:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11638] RET ldv_memset((void *)(& ldvarg0), 0, 4UL) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg0), 0, 4UL)={73786976294838206710:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, ldvarg1={-55340232221128654849:0}, ldvarg2={36893488147419103233:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={36893488147419103233:0}, tmp___0={-55340232221128654849:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11639] tmp___1 = __VERIFIER_nondet_int() [L11641] case 0: VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={73786976294838206710:0}, ldvarg1={-55340232221128654849:0}, ldvarg2={36893488147419103233:0}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={36893488147419103233:0}, tmp___0={-55340232221128654849:0}, tmp___1=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11642] COND TRUE ldv_state_variable_4 == 1 [L11643] CALL netback_probe(netback_driver_group0, (struct xenbus_device_id const *)ldvarg2) [L10632] char const *message ; [L10633] struct xenbus_transaction xbt ; [L10634] int err ; [L10635] int sg ; [L10636] char const *script ; [L10637] struct backend_info *be ; [L10638] void *tmp ; [L10639] struct xenbus_transaction __constr_expr_0 ; [L10640] struct _ddebug descriptor ; [L10641] long tmp___0 ; [L10642] struct xenbus_transaction __constr_expr_1 ; [L10643] struct _ddebug descriptor___0 ; [L10644] long tmp___1 ; [L10645] struct xenbus_transaction __constr_expr_2 ; [L10646] void *tmp___2 ; [L10647] long tmp___3 ; [L10648] bool tmp___4 ; [L10649] struct _ddebug descriptor___1 ; [L10650] long tmp___5 ; VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10652] CALL, EXPR kzalloc(72UL, 208U) VAL [\old(flags)=208, \old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10303] void *tmp ; VAL [\old(flags)=208, \old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, flags=208, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10305] CALL, EXPR kmalloc(size, flags | 32768U) VAL [\old(flags)=32768, \old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10294] void *tmp___2 ; [L10296] CALL, EXPR __kmalloc(size, flags) [L10289] CALL, EXPR ldv_malloc(size) VAL [\old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6694] void *p ; [L6695] void *tmp ; [L6696] int tmp___0 ; [L6698] tmp___0 = __VERIFIER_nondet_int() [L6699] COND FALSE !(tmp___0 != 0) [L6702] tmp = malloc(size) [L6703] p = tmp VAL [\old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, tmp___0=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6704] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6704] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, tmp___0=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6705] CALL, EXPR IS_ERR(p) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11777] bool tmp ; VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11779] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13215] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11779] RET, EXPR ldv_is_err(ptr) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11779] tmp = ldv_is_err(ptr) [L11780] return (tmp); VAL [\result=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ptr={-92233720368547756068:0}, ptr={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6705] RET, EXPR IS_ERR(p) VAL [\old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, tmp___0=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6705] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(cond)=1, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6688] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={255:-254}, cond=1, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6705] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, tmp___0=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6706] return (p); VAL [\old(size)=72, \result={-92233720368547756068:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, p={-92233720368547756068:0}, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, tmp___0=0, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10289] RET, EXPR ldv_malloc(size) VAL [\old(size)=72, \old(t)=32768, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_malloc(size)={-92233720368547756068:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, t=32768, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10289] return ldv_malloc(size); [L10296] RET, EXPR __kmalloc(size, flags) [L10296] tmp___2 = __kmalloc(size, flags) [L10297] return (tmp___2); VAL [\old(flags)=32768, \old(size)=72, \result={-92233720368547756068:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, flags=32768, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp___2={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10305] RET, EXPR kmalloc(size, flags | 32768U) VAL [\old(flags)=208, \old(size)=72, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, flags=208, kmalloc(size, flags | 32768U)={-92233720368547756068:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10305] tmp = kmalloc(size, flags | 32768U) [L10306] return (tmp); VAL [\old(flags)=208, \old(size)=72, \result={-92233720368547756068:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, flags=208, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, size=72, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10652] RET, EXPR kzalloc(72UL, 208U) VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, kzalloc(72UL, 208U)={-92233720368547756068:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10652] tmp = kzalloc(72UL, 208U) [L10653] be = (struct backend_info *)tmp VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10654] COND FALSE !((unsigned long )be == (unsigned long )((struct backend_info *)0)) [L10659] be->dev = dev VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10660] CALL dev_set_drvdata(& dev->dev, (void *)be) VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, data={-92233720368547756068:0}, dev={73786976294838206465:60}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10323] dev->driver_data = data VAL [__this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, data={-92233720368547756068:0}, data={-92233720368547756068:0}, dev={73786976294838206465:60}, dev={73786976294838206465:60}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10660] RET dev_set_drvdata(& dev->dev, (void *)be) VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10661] sg = 1 VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, sg=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10663] CALL, EXPR xenbus_transaction_start(& xbt) [L13713] return __VERIFIER_nondet_int(); [L10663] RET, EXPR xenbus_transaction_start(& xbt) [L10663] err = xenbus_transaction_start(& xbt) [L10664] COND TRUE err != 0 VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, err=1, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, sg=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10779] descriptor___1.modname = "xen_netback" [L10780] descriptor___1.function = "netback_probe" [L10781] descriptor___1.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c" [L10782] descriptor___1.format = "failed\n" [L10783] descriptor___1.lineno = 380U [L10784] descriptor___1.flags = 0U [L10785] EXPR descriptor___1.flags VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, descriptor___1.flags=0, dev={73786976294838206465:0}, dev={73786976294838206465:0}, err=1, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, sg=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10785] CALL, EXPR ldv__builtin_expect((long )descriptor___1.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L6773] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={255:-254}, c=0, cpu_online_mask={73786976294838206728:73786976294838206732}, exp=0, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10785] RET, EXPR ldv__builtin_expect((long )descriptor___1.flags & 1L, 0L) VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, descriptor___1.flags=0, dev={73786976294838206465:0}, dev={73786976294838206465:0}, err=1, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, ldv__builtin_expect((long )descriptor___1.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, sg=1, tmp={-92233720368547756068:0}, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10785] tmp___5 = ldv__builtin_expect((long )descriptor___1.flags & 1L, 0L) [L10786] COND FALSE !(tmp___5 != 0L) VAL [__constr_expr_0={73786976294838206714:0}, __constr_expr_1={73786976294838206717:0}, __constr_expr_2={73786976294838206711:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, descriptor={73786976294838206718:0}, descriptor___0={73786976294838206716:0}, descriptor___1={73786976294838206715:0}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, err=1, fatal_skb_slots=20, id={36893488147419103233:0}, id={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, sg=1, tmp={-92233720368547756068:0}, tmp___5=0, xbt={73786976294838206712:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10790] CALL netback_remove(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10607] struct backend_info *be ; [L10608] void *tmp ; [L10609] struct xenbus_transaction __constr_expr_0 ; VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10611] CALL, EXPR dev_get_drvdata((struct device const *)(& dev->dev)) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:60}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10317] EXPR dev->driver_data [L10317] return ((void *)dev->driver_data); [L10611] RET, EXPR dev_get_drvdata((struct device const *)(& dev->dev)) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, dev_get_drvdata((struct device const *)(& dev->dev))={-92233720368547756068:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10611] tmp = dev_get_drvdata((struct device const *)(& dev->dev)) [L10612] be = (struct backend_info *)tmp VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10613] CALL set_backend_state(be, 6) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10988] EXPR be->state VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \old(state)=6, __this_module={255:-254}, be={-92233720368547756068:0}, be={-92233720368547756068:0}, be->state=4294967302, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, state=6, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10988] COND FALSE !((unsigned int )be->state != (unsigned int )state) [L10613] RET set_backend_state(be, 6) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10614] CALL unregister_hotplug_status_watch(be) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11228] EXPR (unsigned char *)be + 56UL VAL [(unsigned char *)be + 56UL=768, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, be={-92233720368547756068:0}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11228] COND FALSE !((unsigned int )*((unsigned char *)be + 56UL) != 0U) [L11233] be->have_hotplug_status_watch = 0U VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, be={-92233720368547756068:0}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10614] RET unregister_hotplug_status_watch(be) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10615] EXPR be->vif VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, be->vif={18446744073709551371:246}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10615] COND TRUE (unsigned long )be->vif != (unsigned long )((struct xenvif *)0) [L10616] CALL kobject_uevent(& dev->dev.kobj, 5) VAL [\old(arg1)=5, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, arg0={73786976294838206465:76}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13496] return __VERIFIER_nondet_int(); [L10616] RET kobject_uevent(& dev->dev.kobj, 5) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, kobject_uevent(& dev->dev.kobj, 5)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10617] EXPR be->vif VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, be->vif={18446744073709551371:246}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10617] CALL xen_unregister_watchers(be->vif) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, vif={18446744073709551371:246}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11216] EXPR vif->credit_watch.node VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, vif={18446744073709551371:246}, vif={18446744073709551371:246}, vif->credit_watch.node={247:18446744073709551369}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L11216] COND FALSE !((unsigned long )vif->credit_watch.node != (unsigned long )((char const *)0)) [L10617] RET xen_unregister_watchers(be->vif) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __constr_expr_0={73786976294838206719:0}, __this_module={255:-254}, be={-92233720368547756068:0}, be->vif={18446744073709551371:246}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206465:0}, dev={73786976294838206465:0}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, tmp={-92233720368547756068:0}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L10618] __constr_expr_0.id = 0U [L10619] EXPR dev->nodename [L10619] CALL xenbus_rm(__constr_expr_0, dev->nodename, "hotplug-status") [L13694] return __VERIFIER_nondet_int(); [L10619] RET xenbus_rm(__constr_expr_0, dev->nodename, "hotplug-status") [L10620] EXPR be->vif [L10620] CALL xenvif_free(be->vif) [L12828] struct xenvif_queue *queue ; [L12829] unsigned int num_queues ; [L12830] unsigned int queue_index ; [L12832] queue = (struct xenvif_queue *)0 [L12833] EXPR vif->num_queues [L12833] num_queues = vif->num_queues [L12834] EXPR vif->dev [L12834] CALL ldv_unregister_netdev_22(vif->dev) [L13184] FCALL unregister_netdev(dev) [L13185] ldv_state_variable_2 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206730:73786976294838206750}, dev={73786976294838206730:73786976294838206750}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12834] RET ldv_unregister_netdev_22(vif->dev) [L12835] queue_index = 0U VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, num_queues=0, queue={0:0}, queue_index=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, vif={18446744073709551371:246}, vif={18446744073709551371:246}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12842] COND FALSE !(queue_index < num_queues) [L12846] EXPR vif->queues VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, num_queues=0, queue={0:0}, queue_index=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, vif={18446744073709551371:246}, vif={18446744073709551371:246}, vif->queues={73786976294838206748:73786976294838206735}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12846] FCALL vfree((void const *)vif->queues) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, num_queues=0, queue={0:0}, queue_index=0, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, vif={18446744073709551371:246}, vif={18446744073709551371:246}, vif->queues={73786976294838206748:73786976294838206735}, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12847] vif->queues = (struct xenvif_queue *)0 [L12848] vif->num_queues = 0U [L12849] EXPR vif->dev [L12849] CALL ldv_free_netdev_23(vif->dev) [L13192] FCALL free_netdev(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206730:73786976294838206750}, dev={73786976294838206730:73786976294838206750}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13193] ldv_state_variable_2 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, dev={73786976294838206730:73786976294838206750}, dev={73786976294838206730:73786976294838206750}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L12849] RET ldv_free_netdev_23(vif->dev) [L12850] CALL ldv_module_put_24(& __this_module) [L13200] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, module={255:-254}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13279] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, module={255:-254}, module={255:-254}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13280] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, module={255:-254}, module={255:-254}, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13281] CALL ldv_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] [L13209] reach_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_2)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={255:-254}, cpu_online_mask={73786976294838206728:73786976294838206732}, fatal_skb_slots=20, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_state_variable_5=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netback_driver={244:0}, netback_driver_group0={73786976294838206465:0}, netback_ids={240:0}, nr_cpu_ids=73786976294838206725, ref_cnt=0, rx_drain_timeout_msecs=10000, rx_stall_timeout_msecs=60000, separate_tx_rx_irq=1, xen_domain_type=1, xen_netback_dbg_root={0:0}, xenvif_dbg_io_ring_ops_fops={241:0}, xenvif_dbg_io_ring_ops_fops_group1={-18446744073709551617:0}, xenvif_dbg_io_ring_ops_fops_group2={-36893488147419103233:0}, xenvif_ethtool_ops={243:0}, xenvif_ethtool_ops_group0={55340232221128654849:0}, xenvif_max_queues=245, xenvif_netdev_ops={239:0}, xenvif_netdev_ops_group1={0:0}, xenvif_stats={242:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 88 procedures, 1307 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 335.2s, OverallIterations: 14, TraceHistogramMax: 8, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.2s, AutomataDifference: 192.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 27354 SdHoareTripleChecker+Valid, 180.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25994 mSDsluCounter, 123069 SdHoareTripleChecker+Invalid, 169.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103217 mSDsCounter, 14035 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62202 IncrementalHoareTripleChecker+Invalid, 76242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14035 mSolverCounterUnsat, 19852 mSDtfsCounter, 62202 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2848 GetRequests, 2605 SyntacticMatches, 4 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6597occurred in iteration=13, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 14878 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 109.4s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 4115 NumberOfCodeBlocks, 4115 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 4639 ConstructedInterpolants, 0 QuantifiedInterpolants, 7567 SizeOfPredicates, 11 NumberOfNonLiveVariables, 16290 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 4600/4631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:59:57,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:59:59,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:59:59,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:59:59,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:59:59,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:59:59,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:59:59,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:59:59,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:59:59,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:59:59,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:59:59,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:59:59,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:59:59,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:59:59,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:59:59,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:59:59,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:59:59,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:59:59,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:59:59,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:59:59,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:59:59,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:59:59,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:59:59,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:59:59,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:59:59,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:59:59,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:59:59,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:59:59,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:59:59,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:59:59,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:59:59,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:59:59,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:59:59,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:59:59,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:59:59,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:59:59,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:59:59,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:59:59,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:59:59,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:59:59,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:59:59,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:59:59,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:59:59,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:59:59,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:59:59,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:59:59,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:59:59,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:59:59,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:59:59,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:59:59,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:59:59,889 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:59:59,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:59:59,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:59:59,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:59:59,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:59:59,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:59:59,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:59:59,892 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:59:59,892 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:59:59,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:59:59,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:59:59,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:59:59,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:59:59,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:59:59,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:59:59,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:59:59,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:59:59,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:59:59,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:59:59,895 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:59:59,895 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:59:59,895 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:59:59,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:59:59,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:59:59,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:59:59,896 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_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2022-11-16 12:00:00,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:00:00,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:00:00,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:00:00,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:00:00,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:00:00,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 12:00:00,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/377b363bd/8da1f4b76e1643d29515276ca9193c20/FLAG4e662ea83 [2022-11-16 12:00:01,487 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:00:01,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 12:00:01,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/377b363bd/8da1f4b76e1643d29515276ca9193c20/FLAG4e662ea83 [2022-11-16 12:00:01,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/data/377b363bd/8da1f4b76e1643d29515276ca9193c20 [2022-11-16 12:00:01,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:00:01,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:00:01,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:00:01,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:00:01,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:00:01,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:01" (1/1) ... [2022-11-16 12:00:01,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea44f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:01, skipping insertion in model container [2022-11-16 12:00:01,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:01" (1/1) ... [2022-11-16 12:00:01,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:00:02,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:00:05,623 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-16 12:00:05,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:00:05,766 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:00:05,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:00:06,350 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-16 12:00:06,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:00:06,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:00:07,278 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-16 12:00:07,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:00:07,466 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:00:07,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07 WrapperNode [2022-11-16 12:00:07,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:00:07,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:00:07,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:00:07,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:00:07,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,821 INFO L138 Inliner]: procedures = 440, calls = 3487, calls flagged for inlining = 207, calls inlined = 116, statements flattened = 4375 [2022-11-16 12:00:07,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:00:07,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:00:07,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:00:07,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:00:07,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:00:08,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:00:08,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:00:08,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:00:08,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:08,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:00:08,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-16 12:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-16 12:00:08,233 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-16 12:00:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2022-11-16 12:00:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2022-11-16 12:00:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-16 12:00:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-16 12:00:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 12:00:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 12:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2022-11-16 12:00:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2022-11-16 12:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 12:00:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 12:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2022-11-16 12:00:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2022-11-16 12:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:00:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2022-11-16 12:00:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2022-11-16 12:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2022-11-16 12:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2022-11-16 12:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2022-11-16 12:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2022-11-16 12:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2022-11-16 12:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2022-11-16 12:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-16 12:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-16 12:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 12:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 12:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 12:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 12:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2022-11-16 12:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2022-11-16 12:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2022-11-16 12:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2022-11-16 12:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-16 12:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 12:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-16 12:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-16 12:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 12:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 12:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 12:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 12:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 12:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 12:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-16 12:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-16 12:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2022-11-16 12:00:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2022-11-16 12:00:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-16 12:00:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-16 12:00:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2022-11-16 12:00:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2022-11-16 12:00:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2022-11-16 12:00:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2022-11-16 12:00:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 12:00:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 12:00:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 12:00:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 12:00:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2022-11-16 12:00:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2022-11-16 12:00:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:00:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2022-11-16 12:00:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2022-11-16 12:00:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:00:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:00:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 12:00:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2022-11-16 12:00:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2022-11-16 12:00:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 12:00:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-16 12:00:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-16 12:00:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-16 12:00:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-16 12:00:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 12:00:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2022-11-16 12:00:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2022-11-16 12:00:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 12:00:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 12:00:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:00:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:00:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 12:00:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:00:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:00:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:00:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:00:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 12:00:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 12:00:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:00:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:00:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-16 12:00:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:00:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2022-11-16 12:00:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2022-11-16 12:00:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:00:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:00:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-16 12:00:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-16 12:00:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2022-11-16 12:00:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2022-11-16 12:00:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 12:00:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 12:00:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-16 12:00:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-16 12:00:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-16 12:00:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-16 12:00:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 12:00:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 12:00:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-16 12:00:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-16 12:00:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-16 12:00:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-16 12:00:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2022-11-16 12:00:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2022-11-16 12:00:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-16 12:00:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-16 12:00:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:00:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:00:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:00:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:00:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:00:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:00:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-16 12:00:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-16 12:00:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 12:00:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 12:00:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2022-11-16 12:00:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2022-11-16 12:00:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2022-11-16 12:00:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2022-11-16 12:00:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 12:00:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 12:00:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:00:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-16 12:00:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-16 12:00:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2022-11-16 12:00:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2022-11-16 12:00:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:00:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2022-11-16 12:00:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2022-11-16 12:00:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 12:00:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 12:00:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2022-11-16 12:00:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2022-11-16 12:00:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 12:00:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 12:00:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-16 12:00:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 12:00:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 12:00:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:00:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:00:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 12:00:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 12:00:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 12:00:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 12:00:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 12:00:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 12:00:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-16 12:00:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-16 12:00:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 12:00:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 12:00:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2022-11-16 12:00:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2022-11-16 12:00:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 12:00:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 12:00:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:00:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:00:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 12:00:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 12:00:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 12:00:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 12:00:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:00:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:00:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-16 12:00:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-16 12:00:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2022-11-16 12:00:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2022-11-16 12:00:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 12:00:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 12:00:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:00:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:00:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-16 12:00:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-16 12:00:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 12:00:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 12:00:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 12:00:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 12:00:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-16 12:00:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-16 12:00:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2022-11-16 12:00:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2022-11-16 12:00:09,080 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:00:09,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:00:09,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:00:57,145 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:00:57,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:00:57,166 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:00:57,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:57 BoogieIcfgContainer [2022-11-16 12:00:57,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:00:57,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:00:57,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:00:57,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:00:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:00:01" (1/3) ... [2022-11-16 12:00:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c467f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:00:57, skipping insertion in model container [2022-11-16 12:00:57,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (2/3) ... [2022-11-16 12:00:57,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c467f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:00:57, skipping insertion in model container [2022-11-16 12:00:57,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:57" (3/3) ... [2022-11-16 12:00:57,180 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-16 12:00:57,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:00:57,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:00:57,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:00:57,301 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@145aad86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:00:57,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:00:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 1296 states, 937 states have (on average 1.3180362860192103) internal successors, (1235), 963 states have internal predecessors, (1235), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) [2022-11-16 12:00:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:00:57,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:00:57,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:00:57,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:00:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:57,326 INFO L85 PathProgramCache]: Analyzing trace with hash 660990165, now seen corresponding path program 1 times [2022-11-16 12:00:57,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:00:57,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612879407] [2022-11-16 12:00:57,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:57,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:00:57,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:00:57,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:00:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:00:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:58,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:00:58,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:58,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:00:58,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:00:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612879407] [2022-11-16 12:00:58,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612879407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:00:58,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:00:58,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:00:58,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494480965] [2022-11-16 12:00:58,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:00:58,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:00:58,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:00:58,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:00:58,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:00:58,732 INFO L87 Difference]: Start difference. First operand has 1296 states, 937 states have (on average 1.3180362860192103) internal successors, (1235), 963 states have internal predecessors, (1235), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:00:59,192 INFO L93 Difference]: Finished difference Result 3872 states and 5413 transitions. [2022-11-16 12:00:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:00:59,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19 [2022-11-16 12:00:59,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:00:59,235 INFO L225 Difference]: With dead ends: 3872 [2022-11-16 12:00:59,235 INFO L226 Difference]: Without dead ends: 2531 [2022-11-16 12:00:59,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:00:59,265 INFO L413 NwaCegarLoop]: 2027 mSDtfsCounter, 1744 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 3780 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 [2022-11-16 12:00:59,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 3780 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:00:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2022-11-16 12:00:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2528. [2022-11-16 12:00:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 1831 states have (on average 1.3009284543965047) internal successors, (2382), 1865 states have internal predecessors, (2382), 526 states have call successors, (526), 171 states have call predecessors, (526), 170 states have return successors, (524), 510 states have call predecessors, (524), 524 states have call successors, (524) [2022-11-16 12:00:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3432 transitions. [2022-11-16 12:00:59,603 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3432 transitions. Word has length 19 [2022-11-16 12:00:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:00:59,604 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 3432 transitions. [2022-11-16 12:00:59,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3432 transitions. [2022-11-16 12:00:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-16 12:00:59,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:00:59,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:00:59,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:59,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:00:59,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:00:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash 708595697, now seen corresponding path program 1 times [2022-11-16 12:00:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:00:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113451643] [2022-11-16 12:00:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:59,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:00:59,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:00:59,863 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:00:59,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:01:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:01,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:01:01,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 12:01:01,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:01,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:01,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113451643] [2022-11-16 12:01:01,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113451643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:01,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:01,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:01:01,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782855684] [2022-11-16 12:01:01,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:01,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:01:01,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:01,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:01:01,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:01,440 INFO L87 Difference]: Start difference. First operand 2528 states and 3432 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:01:02,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:02,017 INFO L93 Difference]: Finished difference Result 6061 states and 8211 transitions. [2022-11-16 12:01:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:01:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 106 [2022-11-16 12:01:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:02,038 INFO L225 Difference]: With dead ends: 6061 [2022-11-16 12:01:02,038 INFO L226 Difference]: Without dead ends: 3536 [2022-11-16 12:01:02,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:02,053 INFO L413 NwaCegarLoop]: 1834 mSDtfsCounter, 682 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:02,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 3538 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:01:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2022-11-16 12:01:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3524. [2022-11-16 12:01:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2574 states have (on average 1.3080808080808082) internal successors, (3367), 2619 states have internal predecessors, (3367), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 12:01:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4769 transitions. [2022-11-16 12:01:02,239 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4769 transitions. Word has length 106 [2022-11-16 12:01:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:02,240 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 4769 transitions. [2022-11-16 12:01:02,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:01:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4769 transitions. [2022-11-16 12:01:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-16 12:01:02,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:02,251 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:02,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-16 12:01:02,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:02,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:02,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1546599431, now seen corresponding path program 1 times [2022-11-16 12:01:02,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:02,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922168081] [2022-11-16 12:01:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:02,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:02,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:02,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:01:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:03,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:01:03,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 12:01:03,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:03,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:03,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922168081] [2022-11-16 12:01:03,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922168081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:03,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:03,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:03,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29783258] [2022-11-16 12:01:03,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:03,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:01:03,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:03,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:01:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:01:03,989 INFO L87 Difference]: Start difference. First operand 3524 states and 4769 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-16 12:01:05,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:01:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:05,757 INFO L93 Difference]: Finished difference Result 7062 states and 9557 transitions. [2022-11-16 12:01:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:05,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2022-11-16 12:01:05,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:05,776 INFO L225 Difference]: With dead ends: 7062 [2022-11-16 12:01:05,777 INFO L226 Difference]: Without dead ends: 3535 [2022-11-16 12:01:05,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:05,797 INFO L413 NwaCegarLoop]: 1726 mSDtfsCounter, 10 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:05,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:01:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2022-11-16 12:01:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3527. [2022-11-16 12:01:05,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 2577 states have (on average 1.3069460613116026) internal successors, (3368), 2622 states have internal predecessors, (3368), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 12:01:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4770 transitions. [2022-11-16 12:01:05,962 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4770 transitions. Word has length 185 [2022-11-16 12:01:05,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:05,963 INFO L495 AbstractCegarLoop]: Abstraction has 3527 states and 4770 transitions. [2022-11-16 12:01:05,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-16 12:01:05,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4770 transitions. [2022-11-16 12:01:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 12:01:05,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:05,972 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:06,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:06,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:06,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:06,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:06,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2133333895, now seen corresponding path program 1 times [2022-11-16 12:01:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:06,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622475133] [2022-11-16 12:01:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:06,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:06,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:06,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:06,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:01:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:07,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:01:07,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 12:01:07,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:07,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:07,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622475133] [2022-11-16 12:01:07,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622475133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:07,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:07,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:01:07,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129283852] [2022-11-16 12:01:07,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:07,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:01:07,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:01:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:07,840 INFO L87 Difference]: Start difference. First operand 3527 states and 4770 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-16 12:01:08,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:08,030 INFO L93 Difference]: Finished difference Result 7051 states and 9537 transitions. [2022-11-16 12:01:08,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:01:08,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 194 [2022-11-16 12:01:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:08,050 INFO L225 Difference]: With dead ends: 7051 [2022-11-16 12:01:08,050 INFO L226 Difference]: Without dead ends: 3527 [2022-11-16 12:01:08,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:08,066 INFO L413 NwaCegarLoop]: 1726 mSDtfsCounter, 1712 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:08,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1726 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:01:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2022-11-16 12:01:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 3527. [2022-11-16 12:01:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 2577 states have (on average 1.3053938688397362) internal successors, (3364), 2622 states have internal predecessors, (3364), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 12:01:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4766 transitions. [2022-11-16 12:01:08,282 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4766 transitions. Word has length 194 [2022-11-16 12:01:08,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:08,283 INFO L495 AbstractCegarLoop]: Abstraction has 3527 states and 4766 transitions. [2022-11-16 12:01:08,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-16 12:01:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4766 transitions. [2022-11-16 12:01:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 12:01:08,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:08,291 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:08,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:08,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:08,507 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:08,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1345586171, now seen corresponding path program 1 times [2022-11-16 12:01:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:08,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482744671] [2022-11-16 12:01:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:08,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:08,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:08,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:08,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 12:01:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:09,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:01:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-16 12:01:10,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:10,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:10,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482744671] [2022-11-16 12:01:10,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482744671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:10,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:10,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232890986] [2022-11-16 12:01:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:10,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:01:10,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:01:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:10,542 INFO L87 Difference]: Start difference. First operand 3527 states and 4766 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:01:11,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:11,537 INFO L93 Difference]: Finished difference Result 7076 states and 9560 transitions. [2022-11-16 12:01:11,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:01:11,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 194 [2022-11-16 12:01:11,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:11,555 INFO L225 Difference]: With dead ends: 7076 [2022-11-16 12:01:11,555 INFO L226 Difference]: Without dead ends: 3542 [2022-11-16 12:01:11,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:01:11,577 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 22 mSDsluCounter, 5168 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:11,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6895 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:01:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2022-11-16 12:01:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3522. [2022-11-16 12:01:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2572 states have (on average 1.3040435458786936) internal successors, (3354), 2617 states have internal predecessors, (3354), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-16 12:01:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4756 transitions. [2022-11-16 12:01:11,948 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4756 transitions. Word has length 194 [2022-11-16 12:01:11,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:11,949 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 4756 transitions. [2022-11-16 12:01:11,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:01:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4756 transitions. [2022-11-16 12:01:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:01:11,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:11,960 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:11,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:12,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:12,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash 948011827, now seen corresponding path program 1 times [2022-11-16 12:01:12,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:12,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202630535] [2022-11-16 12:01:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:12,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:12,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:12,188 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:12,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 12:01:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:13,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1969 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:01:13,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 12:01:13,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:13,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:13,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202630535] [2022-11-16 12:01:13,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202630535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:13,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:13,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:01:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574058180] [2022-11-16 12:01:13,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:13,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:01:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:01:13,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:01:13,725 INFO L87 Difference]: Start difference. First operand 3522 states and 4756 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:01:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:14,350 INFO L93 Difference]: Finished difference Result 8370 states and 11589 transitions. [2022-11-16 12:01:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:01:14,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 214 [2022-11-16 12:01:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:14,376 INFO L225 Difference]: With dead ends: 8370 [2022-11-16 12:01:14,376 INFO L226 Difference]: Without dead ends: 4851 [2022-11-16 12:01:14,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:01:14,393 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 433 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 13145 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:14,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 13145 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:01:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2022-11-16 12:01:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3546. [2022-11-16 12:01:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 2592 states have (on average 1.3016975308641976) internal successors, (3374), 2637 states have internal predecessors, (3374), 702 states have call successors, (702), 248 states have call predecessors, (702), 251 states have return successors, (716), 687 states have call predecessors, (716), 700 states have call successors, (716) [2022-11-16 12:01:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4792 transitions. [2022-11-16 12:01:14,657 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4792 transitions. Word has length 214 [2022-11-16 12:01:14,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:14,658 INFO L495 AbstractCegarLoop]: Abstraction has 3546 states and 4792 transitions. [2022-11-16 12:01:14,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:01:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4792 transitions. [2022-11-16 12:01:14,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-16 12:01:14,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:14,667 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:14,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:14,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:14,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1200232594, now seen corresponding path program 1 times [2022-11-16 12:01:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:14,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372976740] [2022-11-16 12:01:14,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:14,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:14,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:14,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:14,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 12:01:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:16,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:01:16,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 12:01:16,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:16,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:16,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372976740] [2022-11-16 12:01:16,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372976740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:16,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:16,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:01:16,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918902714] [2022-11-16 12:01:16,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:16,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:16,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:16,553 INFO L87 Difference]: Start difference. First operand 3546 states and 4792 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:01:17,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:17,392 INFO L93 Difference]: Finished difference Result 7113 states and 9641 transitions. [2022-11-16 12:01:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:17,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 220 [2022-11-16 12:01:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:17,411 INFO L225 Difference]: With dead ends: 7113 [2022-11-16 12:01:17,412 INFO L226 Difference]: Without dead ends: 3550 [2022-11-16 12:01:17,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:01:17,425 INFO L413 NwaCegarLoop]: 1715 mSDtfsCounter, 6 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8547 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:17,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8547 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:01:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2022-11-16 12:01:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3550. [2022-11-16 12:01:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2596 states have (on average 1.3012326656394453) internal successors, (3378), 2641 states have internal predecessors, (3378), 702 states have call successors, (702), 248 states have call predecessors, (702), 251 states have return successors, (716), 687 states have call predecessors, (716), 700 states have call successors, (716) [2022-11-16 12:01:17,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4796 transitions. [2022-11-16 12:01:17,647 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4796 transitions. Word has length 220 [2022-11-16 12:01:17,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:17,648 INFO L495 AbstractCegarLoop]: Abstraction has 3550 states and 4796 transitions. [2022-11-16 12:01:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:01:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4796 transitions. [2022-11-16 12:01:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-16 12:01:17,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:17,657 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:17,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:17,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:17,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:17,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1962745507, now seen corresponding path program 1 times [2022-11-16 12:01:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:17,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198375223] [2022-11-16 12:01:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:17,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:17,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:17,883 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:17,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 12:01:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:19,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:01:19,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 12:01:19,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 12:01:20,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:20,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198375223] [2022-11-16 12:01:20,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198375223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:20,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:20,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:01:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192711280] [2022-11-16 12:01:20,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:20,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:01:20,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:01:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:20,693 INFO L87 Difference]: Start difference. First operand 3550 states and 4796 transitions. Second operand has 11 states, 9 states have (on average 15.0) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:01:21,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:21,994 INFO L93 Difference]: Finished difference Result 7141 states and 9673 transitions. [2022-11-16 12:01:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:01:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 15.0) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 221 [2022-11-16 12:01:21,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:22,015 INFO L225 Difference]: With dead ends: 7141 [2022-11-16 12:01:22,015 INFO L226 Difference]: Without dead ends: 3574 [2022-11-16 12:01:22,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:01:22,027 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 14 mSDsluCounter, 10260 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 11976 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:22,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 11976 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:01:22,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2022-11-16 12:01:22,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2022-11-16 12:01:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 2612 states have (on average 1.2993874425727412) internal successors, (3394), 2657 states have internal predecessors, (3394), 706 states have call successors, (706), 252 states have call predecessors, (706), 255 states have return successors, (720), 691 states have call predecessors, (720), 704 states have call successors, (720) [2022-11-16 12:01:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 4820 transitions. [2022-11-16 12:01:22,300 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 4820 transitions. Word has length 221 [2022-11-16 12:01:22,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:22,301 INFO L495 AbstractCegarLoop]: Abstraction has 3574 states and 4820 transitions. [2022-11-16 12:01:22,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 15.0) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:01:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 4820 transitions. [2022-11-16 12:01:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-16 12:01:22,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:22,310 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:22,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:22,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:22,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:22,528 INFO L85 PathProgramCache]: Analyzing trace with hash -169157966, now seen corresponding path program 2 times [2022-11-16 12:01:22,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:22,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175528978] [2022-11-16 12:01:22,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:22,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:22,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:22,531 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:22,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-16 12:01:40,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:01:40,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:40,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:01:40,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 12:01:41,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:41,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:41,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175528978] [2022-11-16 12:01:41,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175528978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:41,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:41,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:01:41,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547395088] [2022-11-16 12:01:41,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:41,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:01:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:41,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:01:41,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:41,439 INFO L87 Difference]: Start difference. First operand 3574 states and 4820 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 12:01:42,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:42,641 INFO L93 Difference]: Finished difference Result 9456 states and 12741 transitions. [2022-11-16 12:01:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:01:42,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2022-11-16 12:01:42,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:42,681 INFO L225 Difference]: With dead ends: 9456 [2022-11-16 12:01:42,681 INFO L226 Difference]: Without dead ends: 5885 [2022-11-16 12:01:42,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:42,695 INFO L413 NwaCegarLoop]: 2594 mSDtfsCounter, 1662 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:42,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 4131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:01:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2022-11-16 12:01:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5867. [2022-11-16 12:01:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 4277 states have (on average 1.2948328267477203) internal successors, (5538), 4357 states have internal predecessors, (5538), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 425 states have return successors, (1191), 1134 states have call predecessors, (1191), 1162 states have call successors, (1191) [2022-11-16 12:01:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 7893 transitions. [2022-11-16 12:01:43,148 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 7893 transitions. Word has length 222 [2022-11-16 12:01:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:43,149 INFO L495 AbstractCegarLoop]: Abstraction has 5867 states and 7893 transitions. [2022-11-16 12:01:43,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 12:01:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 7893 transitions. [2022-11-16 12:01:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-16 12:01:43,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:43,160 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:43,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:43,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:43,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -562988056, now seen corresponding path program 1 times [2022-11-16 12:01:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:43,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303757773] [2022-11-16 12:01:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:43,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:43,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:43,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:43,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-16 12:01:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:44,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:01:44,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:45,175 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 12:01:45,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 12:01:46,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:46,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303757773] [2022-11-16 12:01:46,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303757773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:46,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:46,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-16 12:01:46,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216605380] [2022-11-16 12:01:46,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:46,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:01:46,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:46,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:01:46,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:01:46,451 INFO L87 Difference]: Start difference. First operand 5867 states and 7893 transitions. Second operand has 13 states, 11 states have (on average 15.363636363636363) internal successors, (169), 13 states have internal predecessors, (169), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-16 12:01:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:47,946 INFO L93 Difference]: Finished difference Result 11785 states and 15891 transitions. [2022-11-16 12:01:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:01:47,947 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 15.363636363636363) internal successors, (169), 13 states have internal predecessors, (169), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 253 [2022-11-16 12:01:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:47,977 INFO L225 Difference]: With dead ends: 11785 [2022-11-16 12:01:47,977 INFO L226 Difference]: Without dead ends: 5873 [2022-11-16 12:01:47,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:01:47,996 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 9 mSDsluCounter, 11958 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13672 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:47,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13672 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:01:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5873 states. [2022-11-16 12:01:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5873 to 5873. [2022-11-16 12:01:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5873 states, 4283 states have (on average 1.294419799206164) internal successors, (5544), 4363 states have internal predecessors, (5544), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 425 states have return successors, (1191), 1134 states have call predecessors, (1191), 1162 states have call successors, (1191) [2022-11-16 12:01:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5873 states to 5873 states and 7899 transitions. [2022-11-16 12:01:48,578 INFO L78 Accepts]: Start accepts. Automaton has 5873 states and 7899 transitions. Word has length 253 [2022-11-16 12:01:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:48,578 INFO L495 AbstractCegarLoop]: Abstraction has 5873 states and 7899 transitions. [2022-11-16 12:01:48,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 15.363636363636363) internal successors, (169), 13 states have internal predecessors, (169), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-16 12:01:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5873 states and 7899 transitions. [2022-11-16 12:01:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-16 12:01:48,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:48,591 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:48,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:48,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:48,807 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:48,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 957561847, now seen corresponding path program 2 times [2022-11-16 12:01:48,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:48,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468942632] [2022-11-16 12:01:48,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:48,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:48,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:48,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:48,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-16 12:01:50,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:01:50,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:50,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:01:50,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-16 12:01:50,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:50,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:50,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468942632] [2022-11-16 12:01:50,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468942632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:50,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:50,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:01:50,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888069102] [2022-11-16 12:01:50,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:50,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:01:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:50,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:01:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:01:50,834 INFO L87 Difference]: Start difference. First operand 5873 states and 7899 transitions. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 12:01:51,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:51,766 INFO L93 Difference]: Finished difference Result 13548 states and 18600 transitions. [2022-11-16 12:01:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:01:51,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) Word has length 254 [2022-11-16 12:01:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:51,801 INFO L225 Difference]: With dead ends: 13548 [2022-11-16 12:01:51,801 INFO L226 Difference]: Without dead ends: 7678 [2022-11-16 12:01:51,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:51,821 INFO L413 NwaCegarLoop]: 2203 mSDtfsCounter, 351 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 19395 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:51,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 19395 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:01:51,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2022-11-16 12:01:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 5895. [2022-11-16 12:01:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 4299 states have (on average 1.2933240288439172) internal successors, (5560), 4379 states have internal predecessors, (5560), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1215), 1140 states have call predecessors, (1215), 1162 states have call successors, (1215) [2022-11-16 12:01:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 7939 transitions. [2022-11-16 12:01:52,246 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 7939 transitions. Word has length 254 [2022-11-16 12:01:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:52,247 INFO L495 AbstractCegarLoop]: Abstraction has 5895 states and 7939 transitions. [2022-11-16 12:01:52,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 12:01:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 7939 transitions. [2022-11-16 12:01:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-16 12:01:52,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:52,257 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:52,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:52,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:52,471 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:52,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash -623151563, now seen corresponding path program 1 times [2022-11-16 12:01:52,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:52,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482783922] [2022-11-16 12:01:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:52,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:52,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:52,476 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-16 12:01:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:54,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:01:54,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 52 proven. 6 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 12:01:54,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-16 12:01:56,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:56,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482783922] [2022-11-16 12:01:56,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482783922] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:56,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:56,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-16 12:01:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933646880] [2022-11-16 12:01:56,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:56,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:01:56,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:01:56,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:01:56,397 INFO L87 Difference]: Start difference. First operand 5895 states and 7939 transitions. Second operand has 15 states, 13 states have (on average 14.384615384615385) internal successors, (187), 15 states have internal predecessors, (187), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-11-16 12:01:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:58,370 INFO L93 Difference]: Finished difference Result 11841 states and 15983 transitions. [2022-11-16 12:01:58,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:01:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 14.384615384615385) internal successors, (187), 15 states have internal predecessors, (187), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 274 [2022-11-16 12:01:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:58,391 INFO L225 Difference]: With dead ends: 11841 [2022-11-16 12:01:58,391 INFO L226 Difference]: Without dead ends: 5901 [2022-11-16 12:01:58,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:01:58,407 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 12 mSDsluCounter, 18801 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 20517 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:58,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 20517 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:01:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2022-11-16 12:01:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5901. [2022-11-16 12:01:58,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5901 states, 4305 states have (on average 1.2929152148664345) internal successors, (5566), 4385 states have internal predecessors, (5566), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1215), 1140 states have call predecessors, (1215), 1162 states have call successors, (1215) [2022-11-16 12:01:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5901 states to 5901 states and 7945 transitions. [2022-11-16 12:01:58,797 INFO L78 Accepts]: Start accepts. Automaton has 5901 states and 7945 transitions. Word has length 274 [2022-11-16 12:01:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:58,797 INFO L495 AbstractCegarLoop]: Abstraction has 5901 states and 7945 transitions. [2022-11-16 12:01:58,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 14.384615384615385) internal successors, (187), 15 states have internal predecessors, (187), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-11-16 12:01:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5901 states and 7945 transitions. [2022-11-16 12:01:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-16 12:01:58,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:58,808 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:58,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:59,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:59,027 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1286055302, now seen corresponding path program 2 times [2022-11-16 12:01:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:59,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695599536] [2022-11-16 12:01:59,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:59,030 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:59,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-16 12:02:00,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:02:00,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:02:00,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:02:00,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:02:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2022-11-16 12:02:00,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:02:00,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:02:00,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695599536] [2022-11-16 12:02:00,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695599536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:00,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:00,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:02:00,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369511280] [2022-11-16 12:02:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:00,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:02:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:02:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:02:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:02:00,512 INFO L87 Difference]: Start difference. First operand 5901 states and 7945 transitions. Second operand has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 12:02:01,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:01,616 INFO L93 Difference]: Finished difference Result 13560 states and 18614 transitions. [2022-11-16 12:02:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:02:01,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 275 [2022-11-16 12:02:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:01,646 INFO L225 Difference]: With dead ends: 13560 [2022-11-16 12:02:01,646 INFO L226 Difference]: Without dead ends: 7662 [2022-11-16 12:02:01,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:02:01,664 INFO L413 NwaCegarLoop]: 2206 mSDtfsCounter, 350 mSDsluCounter, 8379 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 10585 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:01,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 10585 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:02:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7662 states. [2022-11-16 12:02:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7662 to 5901. [2022-11-16 12:02:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5901 states, 4305 states have (on average 1.2924506387921022) internal successors, (5564), 4385 states have internal predecessors, (5564), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1215), 1140 states have call predecessors, (1215), 1162 states have call successors, (1215) [2022-11-16 12:02:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5901 states to 5901 states and 7943 transitions. [2022-11-16 12:02:02,099 INFO L78 Accepts]: Start accepts. Automaton has 5901 states and 7943 transitions. Word has length 275 [2022-11-16 12:02:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:02,100 INFO L495 AbstractCegarLoop]: Abstraction has 5901 states and 7943 transitions. [2022-11-16 12:02:02,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 12:02:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5901 states and 7943 transitions. [2022-11-16 12:02:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-16 12:02:02,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:02,108 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:02,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:02:02,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:02:02,331 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:02:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:02,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2132892988, now seen corresponding path program 1 times [2022-11-16 12:02:02,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:02:02,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69312543] [2022-11-16 12:02:02,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:02,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:02:02,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:02:02,335 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:02:02,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04daeb07-e931-4cf7-a9ab-2d3890b89fc3/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 12:04:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:04:38,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.