/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:24:13,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:24:13,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:24:13,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:24:13,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:24:13,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:24:13,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:24:13,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:24:13,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:24:13,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:24:13,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:24:13,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:24:13,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:24:13,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:24:13,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:24:13,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:24:13,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:24:13,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:24:13,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:24:13,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:24:13,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:24:13,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:24:13,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:24:13,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:24:13,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:24:13,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:24:13,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:24:13,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:24:13,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:24:13,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:24:13,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:24:13,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:24:13,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:24:13,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:24:13,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:24:13,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:24:13,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:24:13,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:24:13,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:24:13,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:24:13,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:24:13,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:24:13,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:24:13,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:24:13,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:24:13,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:24:13,392 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:24:13,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:24:13,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:24:13,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:24:13,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:24:13,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:24:13,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:24:13,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:24:13,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:24:13,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:24:13,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:24:13,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:24:13,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:24:13,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:24:13,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:24:13,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:24:13,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:24:13,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:24:13,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:24:13,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:24:13,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:24:13,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:24:13,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:24:13,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:24:13,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:24:13,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:24:13,872 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:24:13,873 INFO L432 ainManager$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--mwl8k.ko-entry_point.cil.out.i [2020-12-22 13:24:13,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6740161c/a272fbd14953477f9564da0ccde0ace9/FLAGc28db10c1 [2020-12-22 13:24:15,298 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:24:15,298 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--mwl8k.ko-entry_point.cil.out.i [2020-12-22 13:24:15,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6740161c/a272fbd14953477f9564da0ccde0ace9/FLAGc28db10c1 [2020-12-22 13:24:15,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6740161c/a272fbd14953477f9564da0ccde0ace9 [2020-12-22 13:24:15,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:24:15,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:24:15,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:24:15,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:24:15,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:24:15,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:24:15" (1/1) ... [2020-12-22 13:24:15,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3beeb06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:15, skipping insertion in model container [2020-12-22 13:24:15,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:24:15" (1/1) ... [2020-12-22 13:24:15,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:24:15,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:24:17,977 WARN L226 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--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2020-12-22 13:24:20,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:24:20,574 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:24:20,811 WARN L226 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--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2020-12-22 13:24:21,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:24:22,292 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:24:22,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22 WrapperNode [2020-12-22 13:24:22,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:24:22,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:24:22,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:24:22,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:24:22,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:22,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:25,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:24:25,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:24:25,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:24:25,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:24:25,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:25,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:26,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:26,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:29,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:29,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:29,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... [2020-12-22 13:24:30,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:24:30,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:24:30,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:24:30,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:24:30,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:24:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-22 13:24:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2020-12-22 13:24:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:24:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:24:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:24:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:24:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2020-12-22 13:24:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:24:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:24:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:24:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2020-12-22 13:24:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2020-12-22 13:24:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:24:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:24:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2020-12-22 13:24:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2020-12-22 13:24:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:24:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:24:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2020-12-22 13:24:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2020-12-22 13:24:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:24:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:24:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:24:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:24:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:24:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2020-12-22 13:24:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2020-12-22 13:24:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2020-12-22 13:27:55,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:27:55,487 INFO L299 CfgBuilder]: Removed 14276 assume(true) statements. [2020-12-22 13:27:55,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:27:55 BoogieIcfgContainer [2020-12-22 13:27:55,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:27:55,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:27:55,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:27:55,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:27:55,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:24:15" (1/3) ... [2020-12-22 13:27:55,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7a0478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:27:55, skipping insertion in model container [2020-12-22 13:27:55,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:24:22" (2/3) ... [2020-12-22 13:27:55,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7a0478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:27:55, skipping insertion in model container [2020-12-22 13:27:55,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:27:55" (3/3) ... [2020-12-22 13:27:55,520 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2020-12-22 13:27:55,532 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:27:55,541 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 13:27:55,561 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 13:27:55,644 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:27:55,644 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:27:55,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:27:55,644 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:27:55,645 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:27:55,645 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:27:55,645 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:27:55,645 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:27:55,859 INFO L276 IsEmpty]: Start isEmpty. Operand 15838 states. [2020-12-22 13:27:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 13:27:55,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:27:55,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:27:55,888 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:27:55,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:27:55,895 INFO L82 PathProgramCache]: Analyzing trace with hash -113770352, now seen corresponding path program 1 times [2020-12-22 13:27:55,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:27:55,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15077924] [2020-12-22 13:27:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:27:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:27:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:27:57,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15077924] [2020-12-22 13:27:57,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:27:57,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:27:57,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467805400] [2020-12-22 13:27:57,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:27:57,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:27:57,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:27:57,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:27:57,108 INFO L87 Difference]: Start difference. First operand 15838 states. Second operand 3 states. [2020-12-22 13:27:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:27:58,938 INFO L93 Difference]: Finished difference Result 31676 states and 46403 transitions. [2020-12-22 13:27:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:27:58,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 13:27:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:27:59,089 INFO L225 Difference]: With dead ends: 31676 [2020-12-22 13:27:59,089 INFO L226 Difference]: Without dead ends: 15635 [2020-12-22 13:27:59,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:27:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15635 states. [2020-12-22 13:27:59,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15635 to 15635. [2020-12-22 13:27:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15635 states. [2020-12-22 13:27:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15635 states to 15635 states and 22279 transitions. [2020-12-22 13:27:59,957 INFO L78 Accepts]: Start accepts. Automaton has 15635 states and 22279 transitions. Word has length 76 [2020-12-22 13:27:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:27:59,958 INFO L481 AbstractCegarLoop]: Abstraction has 15635 states and 22279 transitions. [2020-12-22 13:27:59,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:27:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15635 states and 22279 transitions. [2020-12-22 13:27:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 13:27:59,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:27:59,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:27:59,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:27:59,967 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:27:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:27:59,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2096727142, now seen corresponding path program 1 times [2020-12-22 13:27:59,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:27:59,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026483550] [2020-12-22 13:27:59,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:28:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:28:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 13:28:00,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026483550] [2020-12-22 13:28:00,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:28:00,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:28:00,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734488555] [2020-12-22 13:28:00,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:28:00,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:28:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:28:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:28:00,499 INFO L87 Difference]: Start difference. First operand 15635 states and 22279 transitions. Second operand 3 states. [2020-12-22 13:28:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:28:02,647 INFO L93 Difference]: Finished difference Result 31147 states and 44411 transitions. [2020-12-22 13:28:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:28:02,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-12-22 13:28:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:28:02,771 INFO L225 Difference]: With dead ends: 31147 [2020-12-22 13:28:02,772 INFO L226 Difference]: Without dead ends: 15637 [2020-12-22 13:28:02,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:28:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15637 states. [2020-12-22 13:28:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15637 to 15637. [2020-12-22 13:28:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15637 states. [2020-12-22 13:28:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15637 states to 15637 states and 22281 transitions. [2020-12-22 13:28:03,461 INFO L78 Accepts]: Start accepts. Automaton has 15637 states and 22281 transitions. Word has length 81 [2020-12-22 13:28:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:28:03,462 INFO L481 AbstractCegarLoop]: Abstraction has 15637 states and 22281 transitions. [2020-12-22 13:28:03,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:28:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15637 states and 22281 transitions. [2020-12-22 13:28:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 13:28:03,467 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:28:03,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:28:03,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:28:03,468 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:28:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:28:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash -139284826, now seen corresponding path program 1 times [2020-12-22 13:28:03,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:28:03,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349565923] [2020-12-22 13:28:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:28:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:28:03,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 13:28:03,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349565923] [2020-12-22 13:28:03,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:28:03,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:28:03,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204929051] [2020-12-22 13:28:03,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:28:03,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:28:03,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:28:03,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:28:03,916 INFO L87 Difference]: Start difference. First operand 15637 states and 22281 transitions. Second operand 3 states. [2020-12-22 13:28:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:28:07,347 INFO L93 Difference]: Finished difference Result 46602 states and 66470 transitions. [2020-12-22 13:28:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:28:07,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 13:28:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:28:07,496 INFO L225 Difference]: With dead ends: 46602 [2020-12-22 13:28:07,496 INFO L226 Difference]: Without dead ends: 31104 [2020-12-22 13:28:07,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:28:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31104 states. [2020-12-22 13:28:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31104 to 31104. [2020-12-22 13:28:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31104 states. [2020-12-22 13:28:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31104 states to 31104 states and 44355 transitions. [2020-12-22 13:28:08,796 INFO L78 Accepts]: Start accepts. Automaton has 31104 states and 44355 transitions. Word has length 83 [2020-12-22 13:28:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:28:08,799 INFO L481 AbstractCegarLoop]: Abstraction has 31104 states and 44355 transitions. [2020-12-22 13:28:08,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:28:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 31104 states and 44355 transitions. [2020-12-22 13:28:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 13:28:08,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:28:08,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:28:08,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:28:08,805 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:28:08,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:28:08,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1896003818, now seen corresponding path program 1 times [2020-12-22 13:28:08,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:28:08,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606964706] [2020-12-22 13:28:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY