./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 09:11:25,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:11:25,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:11:25,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:11:25,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:11:25,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:11:25,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:11:25,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:11:25,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:11:25,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:11:25,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:11:25,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:11:25,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:11:25,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:11:25,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:11:25,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:11:25,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:11:25,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:11:25,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:11:25,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:11:25,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:11:25,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:11:25,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:11:25,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:11:25,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:11:25,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:11:25,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:11:25,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:11:25,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:11:25,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:11:25,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:11:25,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:11:25,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:11:25,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:11:25,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:11:25,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:11:25,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:11:25,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:11:25,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:11:25,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:11:25,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:11:25,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:11:25,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:11:25,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:11:25,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:11:25,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:11:25,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:11:25,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:11:25,417 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:11:25,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:11:25,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:11:25,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:11:25,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:11:25,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:11:25,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:11:25,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:11:25,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:11:25,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:11:25,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:11:25,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:11:25,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:11:25,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:11:25,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:11:25,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:11:25,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:11:25,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:11:25,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:11:25,421 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:11:25,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:11:25,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:11:25,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:11:25,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e [2021-11-04 09:11:25,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:11:25,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:11:25,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:11:25,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:11:25,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:11:25,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-04 09:11:25,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa2b53b2/88881d26eebc4e6f8b945a95e264163a/FLAG0c7e6724c [2021-11-04 09:11:26,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:11:26,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-04 09:11:26,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa2b53b2/88881d26eebc4e6f8b945a95e264163a/FLAG0c7e6724c [2021-11-04 09:11:27,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa2b53b2/88881d26eebc4e6f8b945a95e264163a [2021-11-04 09:11:27,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:11:27,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:11:27,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:11:27,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:11:27,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:11:27,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:11:27" (1/1) ... [2021-11-04 09:11:27,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a38ecf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:27, skipping insertion in model container [2021-11-04 09:11:27,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:11:27" (1/1) ... [2021-11-04 09:11:27,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:11:27,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:11:31,350 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2021-11-04 09:11:31,352 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2021-11-04 09:11:31,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:11:31,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:11:31,667 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2021-11-04 09:11:31,668 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2021-11-04 09:11:31,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:11:31,882 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:11:31,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31 WrapperNode [2021-11-04 09:11:31,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:11:31,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:11:31,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:11:31,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:11:31,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:32,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:52,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:11:52,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:11:52,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:11:52,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:11:52,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:52,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:54,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:54,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:57,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:58,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:11:58,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:12:00,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:12:00,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:12:00,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:12:00,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:12:00,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (1/1) ... [2021-11-04 09:12:00,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:12:00,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:12:00,242 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) [2021-11-04 09:12:00,259 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 [2021-11-04 09:12:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-04 09:12:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:12:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-04 09:12:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:12:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:12:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:12:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:12:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:12:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:12:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:12:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:12:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:12:23,077 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 09:12:23,091 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 09:12:23,091 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 09:12:23,092 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-04 09:12:23,092 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:12:23,093 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 09:12:23,096 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:12:23,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 09:12:23,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 09:12:23,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 09:12:23,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:12:23,098 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:12:23,135 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-04 09:12:23,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:12:23,241 INFO L299 CfgBuilder]: Removed 83128 assume(true) statements. [2021-11-04 09:12:23,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:12:23 BoogieIcfgContainer [2021-11-04 09:12:23,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:12:23,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:12:23,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:12:23,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:12:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:11:27" (1/3) ... [2021-11-04 09:12:23,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3b4373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:12:23, skipping insertion in model container [2021-11-04 09:12:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:11:31" (2/3) ... [2021-11-04 09:12:23,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3b4373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:12:23, skipping insertion in model container [2021-11-04 09:12:23,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:12:23" (3/3) ... [2021-11-04 09:12:23,286 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-04 09:12:23,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:12:23,293 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-04 09:12:23,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:12:23,469 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 [2021-11-04 09:12:23,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-04 09:12:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 51308 states, 51307 states have (on average 1.2058978307053618) internal successors, (61871), 51307 states have internal predecessors, (61871), 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) [2021-11-04 09:12:24,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-04 09:12:24,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:12:24,159 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] [2021-11-04 09:12:24,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:12:24,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:12:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 328366182, now seen corresponding path program 1 times [2021-11-04 09:12:24,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:12:24,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360704169] [2021-11-04 09:12:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:12:24,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:12:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:12:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:12:24,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:12:24,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360704169] [2021-11-04 09:12:24,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360704169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:12:24,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:12:24,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:12:24,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248561404] [2021-11-04 09:12:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:12:24,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:12:24,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:12:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:12:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:12:24,923 INFO L87 Difference]: Start difference. First operand has 51308 states, 51307 states have (on average 1.2058978307053618) internal successors, (61871), 51307 states have internal predecessors, (61871), 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) Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-04 09:12:27,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []