./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.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 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:40:51,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:40:51,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:40:51,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:40:51,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:40:51,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:40:51,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:40:51,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:40:51,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:40:51,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:40:51,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:40:51,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:40:51,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:40:51,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:40:51,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:40:51,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:40:51,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:40:51,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:40:51,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:40:51,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:40:51,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:40:51,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:40:51,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:40:51,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:40:51,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:40:51,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:40:51,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:40:51,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:40:51,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:40:51,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:40:51,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:40:51,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:40:51,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:40:51,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:40:51,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:40:51,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:40:51,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:40:51,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:40:51,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:40:51,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:40:51,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:40:51,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:40:51,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:40:51,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:40:51,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:40:51,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:40:51,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:40:51,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:40:51,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:40:51,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:40:51,431 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:40:51,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:40:51,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:40:51,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:40:51,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:40:51,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:40:51,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:40:51,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:40:51,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:40:51,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:40:51,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:40:51,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:40:51,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:40:51,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:40:51,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:40:51,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:40:51,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:40:51,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:40:51,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:40:51,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:40:51,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:40:51,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:40:51,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:40:51,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 [2021-12-22 14:40:51,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:40:51,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:40:51,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:40:51,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:40:51,685 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:40:51,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-22 14:40:51,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7199dd1ac/1925611048b9431181a360db8a46ea95/FLAG49a9bb3b8 [2021-12-22 14:40:52,573 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:40:52,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-22 14:40:52,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7199dd1ac/1925611048b9431181a360db8a46ea95/FLAG49a9bb3b8 [2021-12-22 14:40:53,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7199dd1ac/1925611048b9431181a360db8a46ea95 [2021-12-22 14:40:53,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:40:53,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:40:53,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:40:53,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:40:53,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:40:53,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:40:53" (1/1) ... [2021-12-22 14:40:53,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a1bf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:53, skipping insertion in model container [2021-12-22 14:40:53,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:40:53" (1/1) ... [2021-12-22 14:40:53,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:40:53,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:40:54,421 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2021-12-22 14:40:56,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:40:56,094 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:40:56,209 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2021-12-22 14:40:56,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:40:56,559 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:40:56,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56 WrapperNode [2021-12-22 14:40:56,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:40:56,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:40:56,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:40:56,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:40:56,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:56,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,034 INFO L137 Inliner]: procedures = 382, calls = 4296, calls flagged for inlining = 180, calls inlined = 177, statements flattened = 8043 [2021-12-22 14:40:57,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:40:57,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:40:57,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:40:57,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:40:57,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:40:57,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:40:57,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:40:57,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:40:57,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (1/1) ... [2021-12-22 14:40:57,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:40:57,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:40:57,472 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) [2021-12-22 14:40:57,496 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 [2021-12-22 14:40:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-12-22 14:40:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-12-22 14:40:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2021-12-22 14:40:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2021-12-22 14:40:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-12-22 14:40:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-12-22 14:40:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 14:40:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 14:40:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-12-22 14:40:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-12-22 14:40:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-12-22 14:40:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-12-22 14:40:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-12-22 14:40:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-12-22 14:40:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:40:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:40:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2021-12-22 14:40:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2021-12-22 14:40:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 14:40:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 14:40:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:40:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:40:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-12-22 14:40:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-12-22 14:40:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-22 14:40:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-22 14:40:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2021-12-22 14:40:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2021-12-22 14:40:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2021-12-22 14:40:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2021-12-22 14:40:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2021-12-22 14:40:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2021-12-22 14:40:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:40:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:40:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-12-22 14:40:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-12-22 14:40:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2021-12-22 14:40:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2021-12-22 14:40:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-12-22 14:40:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-12-22 14:40:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2021-12-22 14:40:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2021-12-22 14:40:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2021-12-22 14:40:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2021-12-22 14:40:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-12-22 14:40:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-12-22 14:40:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-12-22 14:40:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-12-22 14:40:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-12-22 14:40:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-12-22 14:40:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2021-12-22 14:40:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2021-12-22 14:40:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-22 14:40:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-22 14:40:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2021-12-22 14:40:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2021-12-22 14:40:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-22 14:40:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-22 14:40:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2021-12-22 14:40:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2021-12-22 14:40:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:40:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:40:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 14:40:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 14:40:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 14:40:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 14:40:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-12-22 14:40:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-12-22 14:40:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:40:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:40:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-22 14:40:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-22 14:40:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:40:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:40:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-22 14:40:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-22 14:40:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2021-12-22 14:40:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2021-12-22 14:40:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 14:40:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 14:40:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 14:40:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 14:40:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:40:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:40:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-12-22 14:40:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-12-22 14:40:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-12-22 14:40:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-12-22 14:40:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:40:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-12-22 14:40:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-12-22 14:40:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-12-22 14:40:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-12-22 14:40:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-12-22 14:40:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-12-22 14:40:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:40:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2021-12-22 14:40:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2021-12-22 14:40:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-22 14:40:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-22 14:40:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-12-22 14:40:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-12-22 14:40:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-12-22 14:40:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-12-22 14:40:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-22 14:40:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-12-22 14:40:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-12-22 14:40:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:40:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:40:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 14:40:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 14:40:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:40:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:40:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-12-22 14:40:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-12-22 14:40:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2021-12-22 14:40:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2021-12-22 14:40:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-12-22 14:40:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-12-22 14:40:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:40:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:40:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2021-12-22 14:40:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2021-12-22 14:40:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:40:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:40:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-12-22 14:40:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-12-22 14:40:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-12-22 14:40:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-12-22 14:40:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:40:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:40:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:40:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-12-22 14:40:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-12-22 14:40:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:40:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:40:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:40:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:40:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-12-22 14:40:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-12-22 14:40:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:40:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-12-22 14:40:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-12-22 14:40:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-12-22 14:40:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-12-22 14:40:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2021-12-22 14:40:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2021-12-22 14:40:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:40:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 14:40:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 14:40:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-12-22 14:40:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-12-22 14:40:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-12-22 14:40:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-12-22 14:40:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:40:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:40:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-22 14:40:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-22 14:40:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-22 14:40:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-22 14:40:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-12-22 14:40:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-12-22 14:40:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2021-12-22 14:40:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2021-12-22 14:40:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-22 14:40:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-22 14:40:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-22 14:40:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-22 14:40:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-12-22 14:40:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-12-22 14:40:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-12-22 14:40:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-12-22 14:40:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-12-22 14:40:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-12-22 14:40:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 14:40:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 14:40:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:40:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 14:40:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 14:40:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-12-22 14:40:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-12-22 14:40:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-12-22 14:40:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-12-22 14:40:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-12-22 14:40:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-12-22 14:40:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:40:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:40:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-12-22 14:40:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-12-22 14:40:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-22 14:40:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-12-22 14:40:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-12-22 14:40:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-12-22 14:40:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-12-22 14:40:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2021-12-22 14:40:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2021-12-22 14:40:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:40:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:40:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-22 14:40:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-22 14:40:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-22 14:40:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-22 14:40:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-12-22 14:40:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-12-22 14:40:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 14:40:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 14:40:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:40:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 14:40:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 14:40:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2021-12-22 14:40:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2021-12-22 14:40:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:40:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:40:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-22 14:40:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-22 14:40:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-12-22 14:40:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-12-22 14:40:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2021-12-22 14:40:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2021-12-22 14:40:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-22 14:40:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-22 14:40:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2021-12-22 14:40:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2021-12-22 14:40:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-12-22 14:40:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-12-22 14:40:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-12-22 14:40:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-12-22 14:40:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-22 14:40:57,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-22 14:40:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 14:40:57,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 14:40:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:40:57,550 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:40:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-12-22 14:40:57,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-12-22 14:40:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-12-22 14:40:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-12-22 14:40:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2021-12-22 14:40:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2021-12-22 14:40:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-12-22 14:40:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-12-22 14:40:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-12-22 14:40:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-12-22 14:40:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-12-22 14:40:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-12-22 14:40:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:40:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-12-22 14:40:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-12-22 14:40:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2021-12-22 14:40:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2021-12-22 14:40:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2021-12-22 14:40:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2021-12-22 14:40:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-12-22 14:40:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-12-22 14:40:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-12-22 14:40:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-12-22 14:40:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-22 14:40:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-22 14:40:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-22 14:40:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:40:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:40:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-22 14:40:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-22 14:40:58,502 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:40:58,506 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:40:58,766 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:41:04,389 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:41:04,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:41:04,423 INFO L299 CfgBuilder]: Removed 81 assume(true) statements. [2021-12-22 14:41:04,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:41:04 BoogieIcfgContainer [2021-12-22 14:41:04,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:41:04,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:41:04,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:41:04,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:41:04,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:40:53" (1/3) ... [2021-12-22 14:41:04,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d556c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:41:04, skipping insertion in model container [2021-12-22 14:41:04,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:40:56" (2/3) ... [2021-12-22 14:41:04,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d556c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:41:04, skipping insertion in model container [2021-12-22 14:41:04,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:41:04" (3/3) ... [2021-12-22 14:41:04,436 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-22 14:41:04,439 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:41:04,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:41:04,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:41:04,510 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 [2021-12-22 14:41:04,510 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:41:04,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) [2021-12-22 14:41:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 14:41:04,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:41:04,598 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 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] [2021-12-22 14:41:04,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:41:04,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:41:04,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1146511857, now seen corresponding path program 1 times [2021-12-22 14:41:04,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:41:04,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272362717] [2021-12-22 14:41:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:41:04,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:41:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:41:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:41:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:41:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:41:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:41:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:41:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:41:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-22 14:41:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:41:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-22 14:41:05,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:41:05,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272362717] [2021-12-22 14:41:05,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272362717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:41:05,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:41:05,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:41:05,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264721595] [2021-12-22 14:41:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:41:05,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:41:05,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:41:05,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:41:05,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:41:05,535 INFO L87 Difference]: Start difference. First operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 14:41:11,990 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 [] [2021-12-22 14:41:18,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:41:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:41:27,961 INFO L93 Difference]: Finished difference Result 10779 states and 17210 transitions. [2021-12-22 14:41:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:41:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 78 [2021-12-22 14:41:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:41:28,038 INFO L225 Difference]: With dead ends: 10779 [2021-12-22 14:41:28,039 INFO L226 Difference]: Without dead ends: 7107 [2021-12-22 14:41:28,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:41:28,076 INFO L933 BasicCegarLoop]: 4723 mSDtfsCounter, 7649 mSDsluCounter, 6214 mSDsCounter, 0 mSdLazyCounter, 6656 mSolverCounterSat, 10831 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8146 SdHoareTripleChecker+Valid, 10937 SdHoareTripleChecker+Invalid, 17488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10831 IncrementalHoareTripleChecker+Valid, 6656 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:41:28,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8146 Valid, 10937 Invalid, 17488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10831 Valid, 6656 Invalid, 1 Unknown, 0 Unchecked, 21.5s Time] [2021-12-22 14:41:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2021-12-22 14:41:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 6695. [2021-12-22 14:41:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3651 states have (on average 1.301287318542865) internal successors, (4751), 3791 states have internal predecessors, (4751), 2803 states have call successors, (2803), 241 states have call predecessors, (2803), 240 states have return successors, (2802), 2732 states have call predecessors, (2802), 2802 states have call successors, (2802) [2021-12-22 14:41:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 10356 transitions. [2021-12-22 14:41:28,742 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 10356 transitions. Word has length 78 [2021-12-22 14:41:28,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:41:28,744 INFO L470 AbstractCegarLoop]: Abstraction has 6695 states and 10356 transitions. [2021-12-22 14:41:28,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-22 14:41:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 10356 transitions. [2021-12-22 14:41:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 14:41:28,759 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:41:28,759 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 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] [2021-12-22 14:41:28,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:41:28,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:41:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:41:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash 673830489, now seen corresponding path program 1 times [2021-12-22 14:41:28,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:41:28,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624400783] [2021-12-22 14:41:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:41:28,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:41:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:41:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:41:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:41:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:41:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:41:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:41:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:41:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-22 14:41:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:41:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:41:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-22 14:41:29,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:41:29,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624400783] [2021-12-22 14:41:29,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624400783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:41:29,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:41:29,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:41:29,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529651702] [2021-12-22 14:41:29,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:41:29,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:41:29,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:41:29,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:41:29,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:41:29,278 INFO L87 Difference]: Start difference. First operand 6695 states and 10356 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:41:31,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:41:33,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:41:35,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:41:39,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:41:40,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []