./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:52:55,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:52:55,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:52:55,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:52:55,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:52:55,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:52:55,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:52:55,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:52:55,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:52:55,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:52:55,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:52:55,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:52:55,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:52:55,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:52:55,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:52:55,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:52:55,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:52:55,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:52:55,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:52:55,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:52:55,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:52:55,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:52:55,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:52:55,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:52:55,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:52:55,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:52:55,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:52:55,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:52:55,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:52:55,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:52:55,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:52:55,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:52:55,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:52:55,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:52:55,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:52:55,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:52:55,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:52:55,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:52:55,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:52:55,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:52:55,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:52:55,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:52:55,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:52:55,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:52:55,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:52:55,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:52:55,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:52:55,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:52:55,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:52:55,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:52:55,487 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:52:55,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:52:55,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:52:55,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:52:55,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:52:55,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:52:55,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:52:55,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:52:55,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:52:55,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:52:55,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:52:55,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:52:55,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:52:55,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:52:55,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:52:55,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:52:55,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:52:55,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:52:55,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:52:55,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:52:55,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:52:55,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:52:55,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:52:55,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-12-14 18:52:55,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:52:55,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:52:55,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:52:55,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:52:55,750 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:52:55,751 INFO L432 ainManager$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 [2021-12-14 18:52:55,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95940764/6a326d6ac39e42f495ad8388db98bc1d/FLAG41f0e67f4 [2021-12-14 18:52:56,655 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:52:56,656 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 [2021-12-14 18:52:56,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95940764/6a326d6ac39e42f495ad8388db98bc1d/FLAG41f0e67f4 [2021-12-14 18:52:56,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95940764/6a326d6ac39e42f495ad8388db98bc1d [2021-12-14 18:52:56,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:52:56,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:52:56,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:52:56,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:52:56,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:52:56,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:52:56" (1/1) ... [2021-12-14 18:52:56,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d982a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:52:56, skipping insertion in model container [2021-12-14 18:52:56,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:52:56" (1/1) ... [2021-12-14 18:52:56,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:52:56,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:53:00,496 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] [2021-12-14 18:53:00,499 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] [2021-12-14 18:53:00,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:53:00,587 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:53:00,984 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] [2021-12-14 18:53:00,985 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] [2021-12-14 18:53:00,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:53:01,233 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:53:01,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01 WrapperNode [2021-12-14 18:53:01,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:53:01,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:53:01,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:53:01,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:53:01,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:01,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:01,772 INFO L137 Inliner]: procedures = 586, calls = 6377, calls flagged for inlining = 287, calls inlined = 259, statements flattened = 12111 [2021-12-14 18:53:01,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:53:01,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:53:01,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:53:01,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:53:01,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:01,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:01,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:01,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:02,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:02,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:02,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:02,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:53:02,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:53:02,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:53:02,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:53:02,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (1/1) ... [2021-12-14 18:53:02,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:53:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:53:02,320 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) [2021-12-14 18:53:02,333 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 [2021-12-14 18:53:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:53:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:53:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:53:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:53:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:53:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:53:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-12-14 18:53:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-12-14 18:53:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:53:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:53:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-12-14 18:53:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-12-14 18:53:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-14 18:53:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-14 18:53:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:53:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:53:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-14 18:53:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-14 18:53:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:53:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:53:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-12-14 18:53:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-12-14 18:53:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-12-14 18:53:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-12-14 18:53:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-12-14 18:53:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-12-14 18:53:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-12-14 18:53:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-12-14 18:53:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 18:53:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 18:53:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-12-14 18:53:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-12-14 18:53:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-12-14 18:53:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-12-14 18:53:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:53:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:53:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:53:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:53:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:53:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:53:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:53:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:53:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-12-14 18:53:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-12-14 18:53:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:53:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:53:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:53:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:53:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:53:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 18:53:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 18:53:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-12-14 18:53:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-12-14 18:53:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:53:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:53:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-12-14 18:53:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-12-14 18:53:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:53:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:53:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:53:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-12-14 18:53:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-12-14 18:53:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-12-14 18:53:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-12-14 18:53:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:53:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:53:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-12-14 18:53:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-12-14 18:53:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:53:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:53:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:53:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-12-14 18:53:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-12-14 18:53:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-12-14 18:53:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-12-14 18:53:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:53:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-12-14 18:53:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-12-14 18:53:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:53:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:53:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-14 18:53:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-14 18:53:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:53:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:53:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:53:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:53:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-14 18:53:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-14 18:53:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:53:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:53:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:53:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:53:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:53:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:53:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-12-14 18:53:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-12-14 18:53:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-14 18:53:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-14 18:53:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:53:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:53:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-12-14 18:53:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-12-14 18:53:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-12-14 18:53:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-12-14 18:53:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-12-14 18:53:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-12-14 18:53:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:53:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:53:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:53:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:53:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:53:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-14 18:53:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-14 18:53:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-14 18:53:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-14 18:53:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:53:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-14 18:53:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-14 18:53:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:53:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:53:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:53:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:53:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:53:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:53:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:53:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-12-14 18:53:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-12-14 18:53:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-12-14 18:53:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-12-14 18:53:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:53:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:53:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:53:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:53:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-14 18:53:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-14 18:53:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-12-14 18:53:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-12-14 18:53:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 18:53:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 18:53:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-12-14 18:53:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-12-14 18:53:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-12-14 18:53:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-12-14 18:53:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-12-14 18:53:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-12-14 18:53:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-14 18:53:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-14 18:53:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:53:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:53:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:53:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:53:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-12-14 18:53:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-12-14 18:53:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-12-14 18:53:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-12-14 18:53:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-12-14 18:53:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-12-14 18:53:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 18:53:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 18:53:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:53:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:53:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-12-14 18:53:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-12-14 18:53:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:53:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:53:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-14 18:53:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-14 18:53:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 18:53:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 18:53:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:53:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:53:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:53:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:53:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:53:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:53:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 18:53:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 18:53:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:53:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:53:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-12-14 18:53:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-12-14 18:53:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:53:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:53:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-12-14 18:53:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-12-14 18:53:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-14 18:53:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-14 18:53:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:53:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:53:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:53:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:53:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-14 18:53:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-14 18:53:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-12-14 18:53:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-12-14 18:53:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-14 18:53:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-14 18:53:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-14 18:53:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-14 18:53:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:53:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:53:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 18:53:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 18:53:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:53:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-14 18:53:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-14 18:53:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:53:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:53:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:53:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-14 18:53:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-14 18:53:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:53:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:53:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:53:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-14 18:53:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-14 18:53:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:53:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:53:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:53:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:53:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 18:53:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 18:53:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-12-14 18:53:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-12-14 18:53:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-12-14 18:53:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-12-14 18:53:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:53:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:53:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-14 18:53:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-14 18:53:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:53:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:53:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:53:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:53:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-14 18:53:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-14 18:53:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:53:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:53:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-12-14 18:53:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-12-14 18:53:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-14 18:53:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-14 18:53:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:53:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:53:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:53:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-12-14 18:53:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-12-14 18:53:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:53:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:53:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-12-14 18:53:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-12-14 18:53:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 18:53:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 18:53:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-12-14 18:53:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-12-14 18:53:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-14 18:53:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-14 18:53:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-14 18:53:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-14 18:53:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-12-14 18:53:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-12-14 18:53:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-14 18:53:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-14 18:53:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 18:53:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 18:53:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-12-14 18:53:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-12-14 18:53:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-12-14 18:53:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-12-14 18:53:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-12-14 18:53:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-12-14 18:53:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-12-14 18:53:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-12-14 18:53:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-12-14 18:53:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-12-14 18:53:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:53:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:53:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 18:53:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 18:53:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:53:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:53:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-14 18:53:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-14 18:53:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 18:53:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 18:53:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:53:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:53:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:53:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-14 18:53:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-12-14 18:53:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-12-14 18:53:03,767 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:53:03,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:53:04,069 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:53:32,286 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:53:32,626 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:53:32,643 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:53:32,643 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 18:53:32,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:53:32 BoogieIcfgContainer [2021-12-14 18:53:32,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:53:32,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:53:32,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:53:32,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:53:32,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:52:56" (1/3) ... [2021-12-14 18:53:32,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe1c1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:53:32, skipping insertion in model container [2021-12-14 18:53:32,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:53:01" (2/3) ... [2021-12-14 18:53:32,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe1c1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:53:32, skipping insertion in model container [2021-12-14 18:53:32,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:53:32" (3/3) ... [2021-12-14 18:53:32,653 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-14 18:53:32,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:53:32,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-14 18:53:32,704 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:53:32,709 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 [2021-12-14 18:53:32,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-14 18:53:32,767 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) [2021-12-14 18:53:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-14 18:53:32,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:53:32,790 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] [2021-12-14 18:53:32,791 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:53:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:53:32,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1723236249, now seen corresponding path program 1 times [2021-12-14 18:53:32,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:53:32,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812932326] [2021-12-14 18:53:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:53:32,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:53:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:53:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:53:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:53:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:53:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:53:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:53:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:53:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:53:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:53:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:53:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:53:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:53:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:53:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:53:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:53:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:53:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:53:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 18:53:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-14 18:53:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-14 18:53:34,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:53:34,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812932326] [2021-12-14 18:53:34,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812932326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:53:34,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:53:34,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:53:34,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900657518] [2021-12-14 18:53:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:53:34,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:53:34,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:53:34,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:53:34,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:53:34,073 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) [2021-12-14 18:53:51,062 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 [] [2021-12-14 18:53:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:53:52,367 INFO L93 Difference]: Finished difference Result 9681 states and 13957 transitions. [2021-12-14 18:53:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:53:52,369 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 [2021-12-14 18:53:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:53:52,427 INFO L225 Difference]: With dead ends: 9681 [2021-12-14 18:53:52,428 INFO L226 Difference]: Without dead ends: 6276 [2021-12-14 18:53:52,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:53:52,462 INFO L933 BasicCegarLoop]: 5182 mSDtfsCounter, 4827 mSDsluCounter, 5627 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 2580 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 10809 SdHoareTripleChecker+Invalid, 5566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:53:52,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5594 Valid, 10809 Invalid, 5566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2580 Valid, 2985 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-12-14 18:53:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2021-12-14 18:53:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 6019. [2021-12-14 18:53:52,904 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) [2021-12-14 18:53:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6019 states to 6019 states and 8478 transitions. [2021-12-14 18:53:52,957 INFO L78 Accepts]: Start accepts. Automaton has 6019 states and 8478 transitions. Word has length 222 [2021-12-14 18:53:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:53:52,960 INFO L470 AbstractCegarLoop]: Abstraction has 6019 states and 8478 transitions. [2021-12-14 18:53:52,960 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) [2021-12-14 18:53:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6019 states and 8478 transitions. [2021-12-14 18:53:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-14 18:53:52,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:53:52,975 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] [2021-12-14 18:53:52,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:53:52,975 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:53:52,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:53:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash -633129653, now seen corresponding path program 1 times [2021-12-14 18:53:52,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:53:52,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103430833] [2021-12-14 18:53:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:53:52,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:53:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:53:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:53:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:53:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:53:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:53:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:53:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:53:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:53:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:53:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:53:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:53:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:53:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:53:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:53:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:53:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:53:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:53:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:53:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:53:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:53:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:53:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 18:53:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:53:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 18:53:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:53:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2021-12-14 18:53:53,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:53:53,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103430833] [2021-12-14 18:53:53,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103430833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:53:53,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:53:53,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:53:53,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013079744] [2021-12-14 18:53:53,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:53:53,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:53:53,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:53:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:53:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:53:53,806 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)