./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.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 f21c7f36186f2129ffc494c3ea005fd20ba865adeabaea67c7a3542b6449e976 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 17:20:48,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 17:20:48,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 17:20:48,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 17:20:48,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 17:20:48,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 17:20:48,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 17:20:48,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 17:20:48,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 17:20:48,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 17:20:48,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 17:20:48,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 17:20:48,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 17:20:48,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 17:20:48,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 17:20:48,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 17:20:48,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 17:20:48,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 17:20:48,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 17:20:48,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 17:20:48,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 17:20:48,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 17:20:48,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 17:20:48,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 17:20:48,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 17:20:48,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 17:20:48,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 17:20:48,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 17:20:48,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 17:20:48,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 17:20:48,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 17:20:48,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 17:20:48,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 17:20:48,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 17:20:48,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 17:20:48,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 17:20:48,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 17:20:48,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 17:20:48,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 17:20:48,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 17:20:48,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 17:20:48,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 17:20:48,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 17:20:48,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 17:20:48,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 17:20:48,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 17:20:48,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 17:20:48,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 17:20:48,260 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 17:20:48,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 17:20:48,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 17:20:48,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 17:20:48,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 17:20:48,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 17:20:48,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 17:20:48,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 17:20:48,263 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 17:20:48,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 17:20:48,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 17:20:48,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 17:20:48,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21c7f36186f2129ffc494c3ea005fd20ba865adeabaea67c7a3542b6449e976 [2021-11-02 17:20:48,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 17:20:48,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 17:20:48,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 17:20:48,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 17:20:48,468 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 17:20:48,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2021-11-02 17:20:48,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d247bf3f/10ba35070bd5408a835e861fd8face36/FLAGf5ee91ec3 [2021-11-02 17:20:49,331 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 17:20:49,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2021-11-02 17:20:49,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d247bf3f/10ba35070bd5408a835e861fd8face36/FLAGf5ee91ec3 [2021-11-02 17:20:49,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d247bf3f/10ba35070bd5408a835e861fd8face36 [2021-11-02 17:20:49,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 17:20:49,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 17:20:49,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 17:20:49,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 17:20:49,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 17:20:49,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 05:20:49" (1/1) ... [2021-11-02 17:20:49,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23dd19cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:49, skipping insertion in model container [2021-11-02 17:20:49,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 05:20:49" (1/1) ... [2021-11-02 17:20:49,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 17:20:49,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 17:20:54,315 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i[608636,608649] [2021-11-02 17:20:54,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 17:20:54,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 17:20:55,315 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i[608636,608649] [2021-11-02 17:20:55,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 17:20:55,467 INFO L208 MainTranslator]: Completed translation [2021-11-02 17:20:55,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55 WrapperNode [2021-11-02 17:20:55,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 17:20:55,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 17:20:55,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 17:20:55,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 17:20:55,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:55,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:57,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 17:20:57,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 17:20:57,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 17:20:57,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 17:20:57,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:57,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:58,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:58,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:20:59,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:21:00,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:21:00,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:21:01,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 17:21:01,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 17:21:01,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 17:21:01,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 17:21:01,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (1/1) ... [2021-11-02 17:21:01,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 17:21:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 17:21:01,198 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 17:21:01,234 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 17:21:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 17:21:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 17:21:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 17:21:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 17:21:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 17:21:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2021-11-02 17:21:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2021-11-02 17:21:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 17:21:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 17:21:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 17:21:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 17:21:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 17:21:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 17:21:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 17:21:01,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2021-11-02 17:21:01,254 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2021-11-02 17:21:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 17:21:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2021-11-02 17:21:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2021-11-02 17:21:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 17:21:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 17:21:56,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 17:21:56,707 INFO L299 CfgBuilder]: Removed 14636 assume(true) statements. [2021-11-02 17:21:56,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 05:21:56 BoogieIcfgContainer [2021-11-02 17:21:56,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 17:21:56,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 17:21:56,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 17:21:56,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 17:21:56,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 05:20:49" (1/3) ... [2021-11-02 17:21:56,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156b5273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 05:21:56, skipping insertion in model container [2021-11-02 17:21:56,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:20:55" (2/3) ... [2021-11-02 17:21:56,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156b5273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 05:21:56, skipping insertion in model container [2021-11-02 17:21:56,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 05:21:56" (3/3) ... [2021-11-02 17:21:56,723 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2021-11-02 17:21:56,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 17:21:56,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-02 17:21:57,006 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 17:21:57,012 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 17:21:57,013 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-02 17:21:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 18769 states, 18593 states have (on average 1.4835690851395686) internal successors, (27584), 18597 states have internal predecessors, (27584), 167 states have call successors, (167), 5 states have call predecessors, (167), 5 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2021-11-02 17:21:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 17:21:57,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:21:57,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 17:21:57,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 17:21:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:21:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1625793821, now seen corresponding path program 1 times [2021-11-02 17:21:57,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:21:57,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19773495] [2021-11-02 17:21:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:21:57,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:21:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:21:58,011 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 17:21:58,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:21:58,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19773495] [2021-11-02 17:21:58,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19773495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:21:58,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:21:58,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:21:58,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521823299] [2021-11-02 17:21:58,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:21:58,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:21:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:21:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:21:58,074 INFO L87 Difference]: Start difference. First operand has 18769 states, 18593 states have (on average 1.4835690851395686) internal successors, (27584), 18597 states have internal predecessors, (27584), 167 states have call successors, (167), 5 states have call predecessors, (167), 5 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:22:00,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:27:44,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:29:47,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:29:47,807 INFO L93 Difference]: Finished difference Result 56274 states and 84047 transitions. [2021-11-02 17:29:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:29:47,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-02 17:29:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:29:47,970 INFO L225 Difference]: With dead ends: 56274 [2021-11-02 17:29:47,971 INFO L226 Difference]: Without dead ends: 37504 [2021-11-02 17:29:48,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:29:48,056 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 27611 mSDsluCounter, 27620 mSDsCounter, 0 mSdLazyCounter, 54606 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 438576.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27611 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 54611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 366.18ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 464861.46ms IncrementalHoareTripleChecker+Time [2021-11-02 17:29:48,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27611 Valid, 835 Invalid, 54611 Unknown, 0 Unchecked, 366.18ms Time], IncrementalHoareTripleChecker [3 Valid, 54606 Invalid, 2 Unknown, 0 Unchecked, 464861.46ms Time] [2021-11-02 17:29:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37504 states. [2021-11-02 17:29:48,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37504 to 37504. [2021-11-02 17:29:48,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37504 states, 37157 states have (on average 1.4689291385203327) internal successors, (54581), 37161 states have internal predecessors, (54581), 334 states have call successors, (334), 10 states have call predecessors, (334), 10 states have return successors, (334), 334 states have call predecessors, (334), 334 states have call successors, (334) [2021-11-02 17:29:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37504 states to 37504 states and 55249 transitions. [2021-11-02 17:29:49,060 INFO L78 Accepts]: Start accepts. Automaton has 37504 states and 55249 transitions. Word has length 18 [2021-11-02 17:29:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:29:49,061 INFO L470 AbstractCegarLoop]: Abstraction has 37504 states and 55249 transitions. [2021-11-02 17:29:49,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:29:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 37504 states and 55249 transitions. [2021-11-02 17:29:49,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 17:29:49,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:29:49,067 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] [2021-11-02 17:29:49,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 17:29:49,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 17:29:49,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:29:49,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1757525663, now seen corresponding path program 1 times [2021-11-02 17:29:49,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:29:49,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532225627] [2021-11-02 17:29:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:29:49,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:29:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:29:49,739 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 17:29:49,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:29:49,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532225627] [2021-11-02 17:29:49,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532225627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:29:49,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:29:49,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 17:29:49,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282207390] [2021-11-02 17:29:49,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 17:29:49,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:29:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 17:29:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 17:29:49,741 INFO L87 Difference]: Start difference. First operand 37504 states and 55249 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:29:51,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15