./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:20:32,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:20:32,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:20:32,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:20:32,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:20:32,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:20:32,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:20:32,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:20:32,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:20:32,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:20:32,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:20:32,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:20:32,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:20:32,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:20:32,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:20:32,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:20:32,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:20:32,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:20:32,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:20:32,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:20:32,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:20:32,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:20:32,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:20:32,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:20:32,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:20:32,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:20:32,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:20:32,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:20:32,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:20:32,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:20:32,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:20:32,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:20:32,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:20:32,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:20:32,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:20:32,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:20:32,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:20:32,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:20:32,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:20:32,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:20:32,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:20:32,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:20:33,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:20:33,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:20:33,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:20:33,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:20:33,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:20:33,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:20:33,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:20:33,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:20:33,015 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:20:33,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:20:33,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:20:33,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:20:33,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:20:33,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:20:33,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:20:33,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:20:33,017 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:20:33,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:20:33,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:20:33,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:20:33,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:20:33,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:20:33,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:20:33,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:20:33,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:20:33,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:20:33,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:20:33,021 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:20:33,021 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:20:33,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:20:33,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:20:33,022 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-12-21 17:20:33,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:20:33,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:20:33,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:20:33,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:20:33,259 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:20:33,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-21 17:20:33,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4403291dd/62eec278ba9a4d2a8c94da41f70a93e5/FLAGec5394871 [2021-12-21 17:20:34,142 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:20:34,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-21 17:20:34,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4403291dd/62eec278ba9a4d2a8c94da41f70a93e5/FLAGec5394871 [2021-12-21 17:20:34,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4403291dd/62eec278ba9a4d2a8c94da41f70a93e5 [2021-12-21 17:20:34,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:20:34,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:20:34,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:20:34,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:20:34,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:20:34,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:20:34" (1/1) ... [2021-12-21 17:20:34,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611a9f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:34, skipping insertion in model container [2021-12-21 17:20:34,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:20:34" (1/1) ... [2021-12-21 17:20:34,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:20:34,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:20:38,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-12-21 17:20:38,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-12-21 17:20:38,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:20:38,557 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:20:38,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-12-21 17:20:38,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-12-21 17:20:38,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:20:39,207 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:20:39,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39 WrapperNode [2021-12-21 17:20:39,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:20:39,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:20:39,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:20:39,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:20:39,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:39,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:39,831 INFO L137 Inliner]: procedures = 586, calls = 6377, calls flagged for inlining = 287, calls inlined = 259, statements flattened = 12111 [2021-12-21 17:20:39,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:20:39,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:20:39,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:20:39,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:20:39,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:39,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:39,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:39,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:40,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:40,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:40,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:40,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:20:40,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:20:40,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:20:40,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:20:40,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (1/1) ... [2021-12-21 17:20:40,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:20:40,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:20:40,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:20:40,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:20:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:20:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:20:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:20:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:20:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:20:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:20:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-12-21 17:20:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-12-21 17:20:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:20:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:20:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-12-21 17:20:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-12-21 17:20:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-21 17:20:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-21 17:20:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:20:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:20:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-21 17:20:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-21 17:20:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 17:20:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 17:20:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-12-21 17:20:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-12-21 17:20:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-12-21 17:20:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-12-21 17:20:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-12-21 17:20:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-12-21 17:20:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-12-21 17:20:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-12-21 17:20:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:20:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:20:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-12-21 17:20:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-12-21 17:20:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-12-21 17:20:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-12-21 17:20:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 17:20:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 17:20:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:20:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:20:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 17:20:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 17:20:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-21 17:20:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-21 17:20:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-12-21 17:20:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-12-21 17:20:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:20:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:20:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:20:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:20:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:20:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 17:20:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 17:20:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-12-21 17:20:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-12-21 17:20:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 17:20:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 17:20:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-12-21 17:20:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-12-21 17:20:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:20:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:20:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:20:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-12-21 17:20:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-12-21 17:20:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-12-21 17:20:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-12-21 17:20:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:20:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:20:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-12-21 17:20:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-12-21 17:20:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:20:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:20:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:20:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-12-21 17:20:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-12-21 17:20:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-12-21 17:20:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-12-21 17:20:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:20:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-12-21 17:20:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-12-21 17:20:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:20:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:20:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-21 17:20:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-21 17:20:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:20:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:20:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:20:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:20:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-21 17:20:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-21 17:20:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:20:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:20:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:20:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:20:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 17:20:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 17:20:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-12-21 17:20:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-12-21 17:20:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-21 17:20:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-21 17:20:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:20:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:20:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-12-21 17:20:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-12-21 17:20:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-12-21 17:20:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-12-21 17:20:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-12-21 17:20:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-12-21 17:20:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:20:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:20:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:20:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:20:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:20:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-21 17:20:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-21 17:20:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-21 17:20:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-21 17:20:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:20:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-21 17:20:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-21 17:20:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:20:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:20:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:20:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:20:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:20:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:20:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:20:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-12-21 17:20:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-12-21 17:20:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-12-21 17:20:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-12-21 17:20:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:20:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:20:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-21 17:20:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-21 17:20:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-21 17:20:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-21 17:20:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-12-21 17:20:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-12-21 17:20:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 17:20:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 17:20:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-12-21 17:20:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-12-21 17:20:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-12-21 17:20:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-12-21 17:20:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-12-21 17:20:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-12-21 17:20:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-21 17:20:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-21 17:20:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:20:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:20:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:20:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:20:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-12-21 17:20:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-12-21 17:20:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-12-21 17:20:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-12-21 17:20:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-12-21 17:20:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-12-21 17:20:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 17:20:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 17:20:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:20:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:20:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-12-21 17:20:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:20:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-21 17:20:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 17:20:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:20:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:20:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:20:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 17:20:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 17:20:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 17:20:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 17:20:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-21 17:20:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-21 17:20:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-12-21 17:20:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-12-21 17:20:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:20:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:20:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-12-21 17:20:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-12-21 17:20:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-21 17:20:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-21 17:20:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:20:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:20:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:20:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:20:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-21 17:20:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-21 17:20:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-12-21 17:20:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-12-21 17:20:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-21 17:20:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-21 17:20:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-21 17:20:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-21 17:20:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:20:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:20:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-21 17:20:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-21 17:20:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:20:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-21 17:20:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-21 17:20:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:20:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:20:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:20:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-21 17:20:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-21 17:20:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:20:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:20:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:20:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-21 17:20:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-21 17:20:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:20:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:20:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:20:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:20:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 17:20:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 17:20:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-12-21 17:20:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-12-21 17:20:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-12-21 17:20:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-12-21 17:20:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 17:20:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 17:20:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-21 17:20:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-21 17:20:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:20:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:20:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:20:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:20:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-21 17:20:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-21 17:20:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:20:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:20:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-12-21 17:20:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-12-21 17:20:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-21 17:20:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-21 17:20:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 17:20:40,533 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 17:20:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:20:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-12-21 17:20:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-12-21 17:20:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:20:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:20:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-12-21 17:20:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-12-21 17:20:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-21 17:20:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-21 17:20:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-12-21 17:20:40,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-12-21 17:20:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-21 17:20:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-21 17:20:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-21 17:20:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-21 17:20:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-12-21 17:20:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-12-21 17:20:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-21 17:20:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-21 17:20:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-21 17:20:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-21 17:20:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-12-21 17:20:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-12-21 17:20:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-12-21 17:20:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-12-21 17:20:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-12-21 17:20:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-12-21 17:20:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-12-21 17:20:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-12-21 17:20:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-12-21 17:20:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-12-21 17:20:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:20:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:20:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-21 17:20:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-21 17:20:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-21 17:20:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-21 17:20:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-21 17:20:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-21 17:20:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 17:20:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 17:20:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:20:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:20:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:20:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-21 17:20:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-12-21 17:20:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-12-21 17:20:41,819 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:20:41,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:20:42,156 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:21:07,000 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:21:07,390 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:21:07,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:21:07,420 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 17:21:07,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:21:07 BoogieIcfgContainer [2021-12-21 17:21:07,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:21:07,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:21:07,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:21:07,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:21:07,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:20:34" (1/3) ... [2021-12-21 17:21:07,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33698130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:21:07, skipping insertion in model container [2021-12-21 17:21:07,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:20:39" (2/3) ... [2021-12-21 17:21:07,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33698130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:21:07, skipping insertion in model container [2021-12-21 17:21:07,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:21:07" (3/3) ... [2021-12-21 17:21:07,432 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-21 17:21:07,439 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:21:07,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-21 17:21:07,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:21:07,502 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:21:07,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 17:21:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) [2021-12-21 17:21:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-21 17:21:07,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:21:07,626 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:21:07,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:21:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:21:07,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1723236249, now seen corresponding path program 1 times [2021-12-21 17:21:07,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:21:07,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632237761] [2021-12-21 17:21:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:21:07,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:21:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:21:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:21:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:21:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:21:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:21:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:21:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:21:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:21:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:21:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:21:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:21:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:21:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:21:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:21:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:21:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:21:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:21:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-21 17:21:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-21 17:21:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-21 17:21:08,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:21:08,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632237761] [2021-12-21 17:21:08,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632237761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:21:08,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:21:08,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:21:08,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355161978] [2021-12-21 17:21:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:21:08,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:21:08,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:21:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:21:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:21:08,975 INFO L87 Difference]: Start difference. First operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:21:22,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:21:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:21:23,128 INFO L93 Difference]: Finished difference Result 9681 states and 13957 transitions. [2021-12-21 17:21:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:21:23,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 222 [2021-12-21 17:21:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:21:23,199 INFO L225 Difference]: With dead ends: 9681 [2021-12-21 17:21:23,199 INFO L226 Difference]: Without dead ends: 6276 [2021-12-21 17:21:23,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:21:23,248 INFO L933 BasicCegarLoop]: 5184 mSDtfsCounter, 4827 mSDsluCounter, 5632 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 2580 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5595 SdHoareTripleChecker+Valid, 10816 SdHoareTripleChecker+Invalid, 5566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:21:23,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5595 Valid, 10816 Invalid, 5566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2580 Valid, 2985 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-12-21 17:21:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2021-12-21 17:21:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 6019. [2021-12-21 17:21:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6019 states, 4083 states have (on average 1.2500612294881215) internal successors, (5104), 4140 states have internal predecessors, (5104), 1687 states have call successors, (1687), 247 states have call predecessors, (1687), 247 states have return successors, (1687), 1671 states have call predecessors, (1687), 1687 states have call successors, (1687) [2021-12-21 17:21:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6019 states to 6019 states and 8478 transitions. [2021-12-21 17:21:23,786 INFO L78 Accepts]: Start accepts. Automaton has 6019 states and 8478 transitions. Word has length 222 [2021-12-21 17:21:23,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:21:23,789 INFO L470 AbstractCegarLoop]: Abstraction has 6019 states and 8478 transitions. [2021-12-21 17:21:23,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:21:23,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6019 states and 8478 transitions. [2021-12-21 17:21:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-21 17:21:23,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:21:23,800 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 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] [2021-12-21 17:21:23,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:21:23,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:21:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:21:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash -633129653, now seen corresponding path program 1 times [2021-12-21 17:21:23,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:21:23,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777076364] [2021-12-21 17:21:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:21:23,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:21:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:21:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:21:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:21:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:21:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:21:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:21:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:21:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:21:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:21:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:21:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:21:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:21:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:21:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:21:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:21:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:21:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:21:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-21 17:21:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:21:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:21:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:21:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-21 17:21:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-21 17:21:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-21 17:21:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:21:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2021-12-21 17:21:24,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:21:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777076364] [2021-12-21 17:21:24,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777076364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:21:24,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:21:24,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:21:24,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344332963] [2021-12-21 17:21:24,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:21:24,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:21:24,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:21:24,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:21:24,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:21:24,862 INFO L87 Difference]: Start difference. First operand 6019 states and 8478 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25)