./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.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 d4a04f164f23bccd0af71a4f58b3950d923042f92e5233e5b981a5aec1f8e73c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 23:42:04,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:42:04,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:42:04,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:42:04,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:42:04,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:42:04,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:42:04,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:42:04,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:42:04,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:42:04,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:42:04,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:42:04,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:42:04,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:42:04,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:42:04,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:42:04,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:42:04,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:42:04,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:42:04,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:42:04,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:42:04,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:42:04,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:42:04,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:42:04,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:42:04,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:42:04,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:42:04,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:42:04,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:42:04,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:42:04,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:42:04,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:42:04,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:42:04,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:42:04,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:42:04,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:42:04,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:42:04,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:42:04,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:42:04,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:42:04,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:42:04,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:42:04,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:42:04,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:42:04,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:42:04,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:42:04,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:42:04,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:42:04,248 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:42:04,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:42:04,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:42:04,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:42:04,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:42:04,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:42:04,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:42:04,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:42:04,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:42:04,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:42:04,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:42:04,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:42:04,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:42:04,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4a04f164f23bccd0af71a4f58b3950d923042f92e5233e5b981a5aec1f8e73c [2021-11-22 23:42:04,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:42:04,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:42:04,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:42:04,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:42:04,454 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:42:04,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i [2021-11-22 23:42:04,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac8a5d4f/7bf8215d4acf4825adb2692021e6cd13/FLAGcccc04199 [2021-11-22 23:42:05,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:42:05,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i [2021-11-22 23:42:05,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac8a5d4f/7bf8215d4acf4825adb2692021e6cd13/FLAGcccc04199 [2021-11-22 23:42:05,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac8a5d4f/7bf8215d4acf4825adb2692021e6cd13 [2021-11-22 23:42:05,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:42:05,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:42:05,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:42:05,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:42:05,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:42:05,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:42:05" (1/1) ... [2021-11-22 23:42:05,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38020d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:05, skipping insertion in model container [2021-11-22 23:42:05,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:42:05" (1/1) ... [2021-11-22 23:42:05,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:42:05,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:42:06,028 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5732] [2021-11-22 23:42:06,034 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5733-5734] [2021-11-22 23:42:06,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i[176188,176201] [2021-11-22 23:42:09,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:42:09,221 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:42:09,299 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5732] [2021-11-22 23:42:09,300 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5733-5734] [2021-11-22 23:42:09,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i[176188,176201] [2021-11-22 23:42:09,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:42:10,009 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:42:10,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10 WrapperNode [2021-11-22 23:42:10,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:42:10,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:42:10,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:42:10,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:42:10,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:10,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:14,619 INFO L137 Inliner]: procedures = 467, calls = 5592, calls flagged for inlining = 1396, calls inlined = 26804, statements flattened = 262176 [2021-11-22 23:42:14,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:42:14,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:42:14,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:42:14,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:42:14,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:14,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:15,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:15,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:18,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:18,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:19,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:20,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:42:20,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:42:20,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:42:20,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:42:20,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (1/1) ... [2021-11-22 23:42:20,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:42:20,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:42:20,131 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) [2021-11-22 23:42:20,132 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 [2021-11-22 23:42:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_issue_init_mfi [2021-11-22 23:42:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_issue_init_mfi [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_shutdown [2021-11-22 23:42:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_shutdown [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_queue_command_lck [2021-11-22 23:42:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_queue_command_lck [2021-11-22 23:42:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_fusion_ocr_wq [2021-11-22 23:42:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_fusion_ocr_wq [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure process_fw_state_change_wq [2021-11-22 23:42:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure process_fw_state_change_wq [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 23:42:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 23:42:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 23:42:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_ioc_init_fusion [2021-11-22 23:42:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_ioc_init_fusion [2021-11-22 23:42:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_init_fw [2021-11-22 23:42:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_init_fw [2021-11-22 23:42:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2021-11-22 23:42:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_transition_to_ready [2021-11-22 23:42:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_transition_to_ready [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:42:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:42:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:42:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:42:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_init_adapter_mfi [2021-11-22 23:42:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_init_adapter_mfi [2021-11-22 23:42:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_complete_cmd_dpc_fusion [2021-11-22 23:42:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_complete_cmd_dpc_fusion [2021-11-22 23:42:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_probe_one [2021-11-22 23:42:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_probe_one [2021-11-22 23:42:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_reset_fusion [2021-11-22 23:42:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_reset_fusion [2021-11-22 23:42:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cmd_fusion [2021-11-22 23:42:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cmd_fusion [2021-11-22 23:42:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:42:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_queue_command [2021-11-22 23:42:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_queue_command [2021-11-22 23:42:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_complete_cmd [2021-11-22 23:42:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_complete_cmd [2021-11-22 23:42:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_wait_for_outstanding_fusion [2021-11-22 23:42:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_wait_for_outstanding_fusion [2021-11-22 23:42:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:42:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 23:42:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-22 23:42:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:42:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_detach_one [2021-11-22 23:42:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_detach_one [2021-11-22 23:42:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure megasas_init_adapter_fusion [2021-11-22 23:42:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure megasas_init_adapter_fusion [2021-11-22 23:42:22,265 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:42:22,266 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:45:13,691 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:45:13,802 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:45:13,802 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:45:13,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:45:13 BoogieIcfgContainer [2021-11-22 23:45:13,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:45:13,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:45:13,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:45:13,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:45:13,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:42:05" (1/3) ... [2021-11-22 23:45:13,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55231803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:45:13, skipping insertion in model container [2021-11-22 23:45:13,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:10" (2/3) ... [2021-11-22 23:45:13,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55231803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:45:13, skipping insertion in model container [2021-11-22 23:45:13,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:45:13" (3/3) ... [2021-11-22 23:45:13,847 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_sas.ko-entry_point.cil.out.i [2021-11-22 23:45:13,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:45:13,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-22 23:45:13,979 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:45:13,984 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 [2021-11-22 23:45:13,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-22 23:45:14,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 48099 states, 47650 states have (on average 1.2863588667366213) internal successors, (61295), 47675 states have internal predecessors, (61295), 408 states have call successors, (408), 21 states have call predecessors, (408), 21 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) [2021-11-22 23:45:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:45:14,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:45:14,595 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] [2021-11-22 23:45:14,596 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [megasas_init_adapter_mfiErr0ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr1ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-22 23:45:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:45:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1705160847, now seen corresponding path program 1 times [2021-11-22 23:45:14,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:45:14,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421055617] [2021-11-22 23:45:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:45:14,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:45:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:45:15,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:45:15,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421055617] [2021-11-22 23:45:15,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421055617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:45:15,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:45:15,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:45:15,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705860998] [2021-11-22 23:45:15,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:45:15,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:45:15,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:45:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:45:15,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:45:15,297 INFO L87 Difference]: Start difference. First operand has 48099 states, 47650 states have (on average 1.2863588667366213) internal successors, (61295), 47675 states have internal predecessors, (61295), 408 states have call successors, (408), 21 states have call predecessors, (408), 21 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-22 23:45:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:45:18,725 INFO L93 Difference]: Finished difference Result 142523 states and 184877 transitions. [2021-11-22 23:45:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:45:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-22 23:45:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:45:19,362 INFO L225 Difference]: With dead ends: 142523 [2021-11-22 23:45:19,363 INFO L226 Difference]: Without dead ends: 94014 [2021-11-22 23:45:20,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:45:20,213 INFO L933 BasicCegarLoop]: 62444 mSDtfsCounter, 59935 mSDsluCounter, 61735 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59935 SdHoareTripleChecker+Valid, 124179 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:45:20,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59935 Valid, 124179 Invalid, 35 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:45:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94014 states. [2021-11-22 23:45:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94014 to 93974. [2021-11-22 23:45:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93974 states, 93097 states have (on average 1.2809435320149951) internal successors, (119252), 93127 states have internal predecessors, (119252), 816 states have call successors, (816), 42 states have call predecessors, (816), 42 states have return successors, (816), 810 states have call predecessors, (816), 816 states have call successors, (816) [2021-11-22 23:45:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93974 states to 93974 states and 120884 transitions. [2021-11-22 23:45:23,345 INFO L78 Accepts]: Start accepts. Automaton has 93974 states and 120884 transitions. Word has length 86 [2021-11-22 23:45:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:45:23,348 INFO L470 AbstractCegarLoop]: Abstraction has 93974 states and 120884 transitions. [2021-11-22 23:45:23,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-22 23:45:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 93974 states and 120884 transitions. [2021-11-22 23:45:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-22 23:45:23,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:45:23,366 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:45:23,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:45:23,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting megasas_init_adapter_fusionErr0ASSERT_VIOLATIONERROR_FUNCTION === [megasas_init_adapter_mfiErr0ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr1ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-22 23:45:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:45:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -260073094, now seen corresponding path program 1 times [2021-11-22 23:45:23,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:45:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428912847] [2021-11-22 23:45:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:45:23,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:45:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-22 23:45:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:23,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:45:23,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:45:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428912847] [2021-11-22 23:45:23,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428912847] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:45:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479664204] [2021-11-22 23:45:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:45:23,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:45:23,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:45:23,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:45:23,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 23:45:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:26,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 4281 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 23:45:26,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:45:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:45:26,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:45:26,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479664204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:45:26,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:45:26,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-22 23:45:26,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801506701] [2021-11-22 23:45:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:45:26,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:45:26,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:45:26,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:45:26,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:45:26,731 INFO L87 Difference]: Start difference. First operand 93974 states and 120884 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 23:45:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:45:30,937 INFO L93 Difference]: Finished difference Result 272536 states and 350704 transitions. [2021-11-22 23:45:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:45:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2021-11-22 23:45:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:45:32,522 INFO L225 Difference]: With dead ends: 272536 [2021-11-22 23:45:32,523 INFO L226 Difference]: Without dead ends: 178712 [2021-11-22 23:45:33,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:45:33,531 INFO L933 BasicCegarLoop]: 61878 mSDtfsCounter, 55716 mSDsluCounter, 61284 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55716 SdHoareTripleChecker+Valid, 123162 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 23:45:33,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55716 Valid, 123162 Invalid, 130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 23:45:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178712 states. [2021-11-22 23:45:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178712 to 178562. [2021-11-22 23:45:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178562 states, 176923 states have (on average 1.2815179484860646) internal successors, (226730), 176965 states have internal predecessors, (226730), 1536 states have call successors, (1536), 84 states have call predecessors, (1536), 84 states have return successors, (1536), 1524 states have call predecessors, (1536), 1536 states have call successors, (1536) [2021-11-22 23:45:38,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178562 states to 178562 states and 229802 transitions. [2021-11-22 23:45:38,965 INFO L78 Accepts]: Start accepts. Automaton has 178562 states and 229802 transitions. Word has length 104 [2021-11-22 23:45:38,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:45:38,966 INFO L470 AbstractCegarLoop]: Abstraction has 178562 states and 229802 transitions. [2021-11-22 23:45:38,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 23:45:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 178562 states and 229802 transitions. [2021-11-22 23:45:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-22 23:45:38,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:45:38,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:45:39,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 23:45:39,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:45:39,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting megasas_init_adapter_fusionErr0ASSERT_VIOLATIONERROR_FUNCTION === [megasas_init_adapter_mfiErr0ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr1ASSERT_VIOLATIONERROR_FUNCTION, megasas_init_adapter_mfiErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-22 23:45:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:45:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1986045521, now seen corresponding path program 1 times [2021-11-22 23:45:39,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:45:39,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124604943] [2021-11-22 23:45:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:45:39,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:45:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-22 23:45:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:45:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:45:39,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:45:39,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124604943] [2021-11-22 23:45:39,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124604943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:45:39,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:45:39,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 23:45:39,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99992382] [2021-11-22 23:45:39,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:45:39,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:45:39,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:45:39,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:45:39,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:45:39,477 INFO L87 Difference]: Start difference. First operand 178562 states and 229802 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 23:45:51,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 23:45:56,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []