./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-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-08_1a-drivers--scsi--aic7xxx--aic7xxx.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 c6dd4cc7485561c07d0768956edf18af5120a26e2ae45a1cf04a069279d5395f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:09:06,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:09:06,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:09:06,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:09:06,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:09:06,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:09:06,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:09:06,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:09:06,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:09:06,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:09:06,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:09:06,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:09:06,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:09:06,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:09:06,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:09:06,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:09:06,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:09:06,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:09:06,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:09:06,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:09:06,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:09:06,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:09:06,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:09:06,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:09:06,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:09:06,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:09:06,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:09:06,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:09:06,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:09:06,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:09:06,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:09:06,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:09:06,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:09:06,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:09:06,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:09:06,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:09:06,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:09:06,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:09:06,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:09:06,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:09:06,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:09:06,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:09:06,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:09:06,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:09:06,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:09:06,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:09:06,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:09:06,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:09:06,731 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:09:06,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:09:06,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:09:06,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:09:06,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:09:06,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:09:06,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:09:06,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:09:06,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:09:06,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:09:06,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:09:06,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:09:06,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:09:06,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:09:06,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:09:06,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:09:06,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:09:06,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:09:06,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:09:06,736 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:09:06,736 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:09:06,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:09:06,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:09:06,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6dd4cc7485561c07d0768956edf18af5120a26e2ae45a1cf04a069279d5395f [2021-11-06 16:09:06,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:09:06,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:09:06,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:09:06,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:09:06,962 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:09:06,963 INFO L432 ainManager$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-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-06 16:09:07,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814883a67/f012d310c7cf4eea956550a11accdc8f/FLAG5fb4a273e [2021-11-06 16:09:07,896 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:09:07,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-06 16:09:07,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814883a67/f012d310c7cf4eea956550a11accdc8f/FLAG5fb4a273e [2021-11-06 16:09:08,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814883a67/f012d310c7cf4eea956550a11accdc8f [2021-11-06 16:09:08,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:09:08,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:09:08,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:09:08,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:09:08,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:09:08,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:09:08" (1/1) ... [2021-11-06 16:09:08,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4037aa96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:08, skipping insertion in model container [2021-11-06 16:09:08,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:09:08" (1/1) ... [2021-11-06 16:09:08,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:09:08,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:09:13,385 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-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i[608054,608067] [2021-11-06 16:09:13,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:09:13,869 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:09:14,712 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-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i[608054,608067] [2021-11-06 16:09:14,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:09:15,266 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:09:15,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15 WrapperNode [2021-11-06 16:09:15,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:09:15,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:09:15,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:09:15,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:09:15,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:15,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:19,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:09:19,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:09:19,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:09:19,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:09:19,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:19,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:20,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:20,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:24,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:24,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:25,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:26,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:09:26,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:09:26,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:09:26,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:09:26,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (1/1) ... [2021-11-06 16:09:26,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:09:26,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:09:26,133 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) [2021-11-06 16:09:26,155 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 [2021-11-06 16:09:26,178 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-06 16:09:26,178 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_seqint [2021-11-06 16:09:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_seqint [2021-11-06 16:09:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_check_patch [2021-11-06 16:09:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_check_patch [2021-11-06 16:09:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:09:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_shutdown [2021-11-06 16:09:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_shutdown [2021-11-06 16:09:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:09:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_done [2021-11-06 16:09:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_done [2021-11-06 16:09:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_scsiint [2021-11-06 16:09:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_scsiint [2021-11-06 16:09:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:09:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:09:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_queue_recovery_cmd [2021-11-06 16:09:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_queue_recovery_cmd [2021-11-06 16:09:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_search_qinfifo [2021-11-06 16:09:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_search_qinfifo [2021-11-06 16:09:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:09:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:09:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_devreset [2021-11-06 16:09:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_devreset [2021-11-06 16:09:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_dev_reset [2021-11-06 16:09:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_dev_reset [2021-11-06 16:09:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 16:09:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 16:09:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:09:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:09:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_pci_dev_resume [2021-11-06 16:09:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_pci_dev_resume [2021-11-06 16:09:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_chip_init [2021-11-06 16:09:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_chip_init [2021-11-06 16:09:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_resume [2021-11-06 16:09:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_resume [2021-11-06 16:09:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_pci_dev_remove [2021-11-06 16:09:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_pci_dev_remove [2021-11-06 16:09:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_message_phase [2021-11-06 16:09:26,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_message_phase [2021-11-06 16:09:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_pause_and_flushwork [2021-11-06 16:09:26,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_pause_and_flushwork [2021-11-06 16:09:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:09:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:09:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_queue_cmd_complete [2021-11-06 16:09:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_queue_cmd_complete [2021-11-06 16:09:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_loadseq [2021-11-06 16:09:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_loadseq [2021-11-06 16:09:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:09:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:09:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_abort_scbs [2021-11-06 16:09:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_abort_scbs [2021-11-06 16:09:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:09:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:09:26,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:09:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_abort [2021-11-06 16:09:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_abort [2021-11-06 16:09:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-06 16:09:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_pci_chip_init [2021-11-06 16:09:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_pci_chip_init [2021-11-06 16:09:26,189 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_run_qoutfifo [2021-11-06 16:09:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_run_qoutfifo [2021-11-06 16:09:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_parse_msg [2021-11-06 16:09:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_parse_msg [2021-11-06 16:09:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_proto_violation [2021-11-06 16:09:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_proto_violation [2021-11-06 16:09:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_freeze_devq [2021-11-06 16:09:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_freeze_devq [2021-11-06 16:09:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_bus_reset [2021-11-06 16:09:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_bus_reset [2021-11-06 16:09:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_brkadrint [2021-11-06 16:09:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_brkadrint [2021-11-06 16:09:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_msg_reject [2021-11-06 16:09:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_msg_reject [2021-11-06 16:09:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:09:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_reset [2021-11-06 16:09:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_reset [2021-11-06 16:09:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_search_untagged_queues [2021-11-06 16:09:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_search_untagged_queues [2021-11-06 16:09:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_download_instr [2021-11-06 16:09:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_download_instr [2021-11-06 16:09:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_intr [2021-11-06 16:09:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_intr [2021-11-06 16:09:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_free [2021-11-06 16:09:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_free [2021-11-06 16:09:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_reset_channel [2021-11-06 16:09:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_reset_channel [2021-11-06 16:09:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:22:30,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:22:30,446 INFO L299 CfgBuilder]: Removed 24799 assume(true) statements. [2021-11-06 16:22:30,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:22:30 BoogieIcfgContainer [2021-11-06 16:22:30,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:22:30,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:22:30,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:22:30,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:22:30,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:09:08" (1/3) ... [2021-11-06 16:22:30,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d156f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:22:30, skipping insertion in model container [2021-11-06 16:22:30,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:09:15" (2/3) ... [2021-11-06 16:22:30,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d156f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:22:30, skipping insertion in model container [2021-11-06 16:22:30,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:22:30" (3/3) ... [2021-11-06 16:22:30,486 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-06 16:22:30,490 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:22:30,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 16:22:30,618 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:22:30,624 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 [2021-11-06 16:22:30,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 16:22:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 33719 states, 33593 states have (on average 1.4014824517012472) internal successors, (47080), 33607 states have internal predecessors, (47080), 89 states have call successors, (89), 35 states have call predecessors, (89), 35 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2021-11-06 16:22:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 16:22:30,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:22:30,996 INFO L513 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] [2021-11-06 16:22:30,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 16:22:31,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:22:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1384435702, now seen corresponding path program 1 times [2021-11-06 16:22:31,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:22:31,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857493951] [2021-11-06 16:22:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:22:31,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:22:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:22:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:22:33,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:22:33,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857493951] [2021-11-06 16:22:33,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857493951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:22:33,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:22:33,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:22:33,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767201519] [2021-11-06 16:22:33,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:22:33,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:22:33,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:22:33,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:22:33,369 INFO L87 Difference]: Start difference. First operand has 33719 states, 33593 states have (on average 1.4014824517012472) internal successors, (47080), 33607 states have internal predecessors, (47080), 89 states have call successors, (89), 35 states have call predecessors, (89), 35 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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)