./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.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 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 22:33:22,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:33:22,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:33:22,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:33:22,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:33:22,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:33:22,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:33:22,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:33:22,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:33:22,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:33:22,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:33:22,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:33:22,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:33:22,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:33:22,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:33:23,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:33:23,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:33:23,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:33:23,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:33:23,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:33:23,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:33:23,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:33:23,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:33:23,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:33:23,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:33:23,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:33:23,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:33:23,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:33:23,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:33:23,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:33:23,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:33:23,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:33:23,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:33:23,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:33:23,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:33:23,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:33:23,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:33:23,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:33:23,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:33:23,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:33:23,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:33:23,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:33:23,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:33:23,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:33:23,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:33:23,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:33:23,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:33:23,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:33:23,049 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:33:23,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:33:23,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:33:23,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:33:23,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:33:23,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:33:23,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:33:23,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:33:23,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:33:23,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:33:23,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:33:23,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:33:23,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:33:23,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:33:23,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:33:23,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:33:23,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:33:23,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:33:23,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:33:23,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:33:23,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:33:23,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:33:23,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:33:23,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 [2021-11-02 22:33:23,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:33:23,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:33:23,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:33:23,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:33:23,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:33:23,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-02 22:33:23,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b56671a7/9c95866b46da4738bc47db2550329979/FLAG464e60afd [2021-11-02 22:33:24,083 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:33:24,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-02 22:33:24,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b56671a7/9c95866b46da4738bc47db2550329979/FLAG464e60afd [2021-11-02 22:33:24,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b56671a7/9c95866b46da4738bc47db2550329979 [2021-11-02 22:33:24,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:33:24,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:33:24,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:33:24,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:33:24,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:33:24,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:33:24" (1/1) ... [2021-11-02 22:33:24,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472fd4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:24, skipping insertion in model container [2021-11-02 22:33:24,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:33:24" (1/1) ... [2021-11-02 22:33:24,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:33:24,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:33:33,658 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-02 22:33:33,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:33:33,904 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:33:34,802 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-02 22:33:34,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:33:35,057 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:33:35,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35 WrapperNode [2021-11-02 22:33:35,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:33:35,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:33:35,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:33:35,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:33:35,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:35,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:37,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:33:37,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:33:37,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:33:37,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:33:37,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:37,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:38,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:38,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:39,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:40,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:40,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:41,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:33:41,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:33:41,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:33:41,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:33:41,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (1/1) ... [2021-11-02 22:33:41,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:33:41,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 22:33:41,079 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) [2021-11-02 22:33:41,098 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 [2021-11-02 22:33:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_start [2021-11-02 22:33:41,119 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_start [2021-11-02 22:33:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_spectrum_measurement [2021-11-02 22:33:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 22:33:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-02 22:33:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_compressed_ba [2021-11-02 22:33:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_compressed_ba [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_commit_rxon [2021-11-02 22:33:41,121 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_commit_rxon [2021-11-02 22:33:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:33:41,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_init_alive_start [2021-11-02 22:33:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_init_alive_start [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_update_chain_flags [2021-11-02 22:33:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_update_chain_flags [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_post_associate [2021-11-02 22:33:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_post_associate [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:33:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:33:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:33:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_error [2021-11-02 22:33:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_config_ap [2021-11-02 22:33:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_config_ap [2021-11-02 22:33:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure __il4965_up [2021-11-02 22:33:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __il4965_up [2021-11-02 22:33:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_alive_start [2021-11-02 22:33:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_alive_start [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_run_time_calib_work [2021-11-02 22:33:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_run_time_calib_work [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_debug_stats [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_rxon_assoc [2021-11-02 22:33:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_rxon_assoc [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_csa [2021-11-02 22:33:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:33:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:33:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 22:33:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 22:33:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 22:33:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 22:33:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_queue_reclaim [2021-11-02 22:33:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_queue_reclaim [2021-11-02 22:33:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:33:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_sleep [2021-11-02 22:33:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:33:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_alive_start [2021-11-02 22:33:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_alive_start [2021-11-02 22:33:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_chain_noise_calibration [2021-11-02 22:33:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_chain_noise_calibration [2021-11-02 22:33:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:33:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 22:33:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 22:33:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_tx [2021-11-02 22:33:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_tx [2021-11-02 22:39:58,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:39:58,800 INFO L299 CfgBuilder]: Removed 19688 assume(true) statements. [2021-11-02 22:39:58,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:39:58 BoogieIcfgContainer [2021-11-02 22:39:58,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:39:58,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:39:58,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:39:58,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:39:58,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:33:24" (1/3) ... [2021-11-02 22:39:58,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e8d69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:39:58, skipping insertion in model container [2021-11-02 22:39:58,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:33:35" (2/3) ... [2021-11-02 22:39:58,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e8d69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:39:58, skipping insertion in model container [2021-11-02 22:39:58,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:39:58" (3/3) ... [2021-11-02 22:39:58,825 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-02 22:39:58,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:39:58,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-02 22:39:58,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:39:58,913 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 [2021-11-02 22:39:58,913 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-02 22:39:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 24942 states, 24687 states have (on average 1.4685461984040182) internal successors, (36254), 24723 states have internal predecessors, (36254), 209 states have call successors, (209), 18 states have call predecessors, (209), 18 states have return successors, (209), 203 states have call predecessors, (209), 209 states have call successors, (209) [2021-11-02 22:39:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-02 22:39:59,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:39:59,157 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:39:59,157 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [il4965_config_apErr0ASSERT_VIOLATIONERROR_FUNCTION, il4965_config_apErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-02 22:39:59,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:39:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash 633900296, now seen corresponding path program 1 times [2021-11-02 22:39:59,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:39:59,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716972013] [2021-11-02 22:39:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:39:59,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:40:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:40:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:40:00,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:40:00,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716972013] [2021-11-02 22:40:00,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716972013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:40:00,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:40:00,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:40:00,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749467656] [2021-11-02 22:40:00,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:40:00,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:40:00,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:40:00,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:40:00,933 INFO L87 Difference]: Start difference. First operand has 24942 states, 24687 states have (on average 1.4685461984040182) internal successors, (36254), 24723 states have internal predecessors, (36254), 209 states have call successors, (209), 18 states have call predecessors, (209), 18 states have return successors, (209), 203 states have call predecessors, (209), 209 states have call successors, (209) Second operand has 2 states, 2 states have (on average 114.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)