./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:41:54,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:41:54,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:41:54,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:41:54,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:41:54,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:41:54,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:41:54,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:41:54,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:41:54,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:41:54,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:41:54,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:41:54,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:41:54,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:41:54,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:41:54,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:41:54,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:41:54,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:41:54,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:41:54,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:41:54,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:41:54,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:41:54,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:41:54,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:41:54,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:41:54,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:41:54,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:41:54,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:41:54,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:41:54,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:41:54,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:41:54,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:41:54,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:41:54,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:41:54,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:41:54,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:41:54,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:41:54,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:41:54,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:41:54,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:41:54,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:41:54,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:41:54,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:41:54,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:41:54,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:41:54,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:41:54,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:41:54,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:41:54,219 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:41:54,219 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:41:54,219 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:41:54,219 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:41:54,220 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:41:54,220 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:41:54,220 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:41:54,220 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:41:54,221 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:41:54,221 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:41:54,221 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:41:54,221 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:41:54,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:41:54,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:41:54,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:41:54,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:41:54,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:41:54,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:41:54,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:41:54,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:41:54,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:41:54,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:41:54,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:41:54,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:41:54,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:41:54,226 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:41:54,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:41:54,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:41:54,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:41:54,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:41:54,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:41:54,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:41:54,227 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 [2022-10-17 17:41:54,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:41:54,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:41:54,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:41:54,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:41:54,583 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:41:54,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2022-10-17 17:41:54,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/data/134aae07c/15287afba36b4d209d13706b7054e6f6/FLAG13876d0f4 [2022-10-17 17:41:55,658 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:41:55,658 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2022-10-17 17:41:55,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/data/134aae07c/15287afba36b4d209d13706b7054e6f6/FLAG13876d0f4 [2022-10-17 17:41:56,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/data/134aae07c/15287afba36b4d209d13706b7054e6f6 [2022-10-17 17:41:56,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:41:56,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:41:56,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:41:56,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:41:56,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:41:56,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:41:56" (1/1) ... [2022-10-17 17:41:56,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a709ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:56, skipping insertion in model container [2022-10-17 17:41:56,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:41:56" (1/1) ... [2022-10-17 17:41:56,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:41:56,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:41:58,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2022-10-17 17:41:58,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:41:58,911 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:41:59,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2022-10-17 17:41:59,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:41:59,579 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:41:59,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59 WrapperNode [2022-10-17 17:41:59,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:41:59,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:41:59,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:41:59,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:41:59,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:41:59,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:41:59,947 INFO L138 Inliner]: procedures = 314, calls = 3825, calls flagged for inlining = 118, calls inlined = 83, statements flattened = 4738 [2022-10-17 17:41:59,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:41:59,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:41:59,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:41:59,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:41:59,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:41:59,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:42:00,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:42:00,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:42:00,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:42:00,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (1/1) ... [2022-10-17 17:42:00,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:42:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:42:00,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:42:00,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a912a83-b030-4341-b532-14e317400c77/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:42:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-10-17 17:42:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2022-10-17 17:42:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2022-10-17 17:42:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-10-17 17:42:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-10-17 17:42:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:42:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2022-10-17 17:42:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2022-10-17 17:42:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:42:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:42:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:42:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:42:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:42:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2022-10-17 17:42:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2022-10-17 17:42:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-17 17:42:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-17 17:42:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 17:42:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 17:42:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:42:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:42:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2022-10-17 17:42:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2022-10-17 17:42:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-10-17 17:42:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-10-17 17:42:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2022-10-17 17:42:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2022-10-17 17:42:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2022-10-17 17:42:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2022-10-17 17:42:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2022-10-17 17:42:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2022-10-17 17:42:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2022-10-17 17:42:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2022-10-17 17:42:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2022-10-17 17:42:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2022-10-17 17:42:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 17:42:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 17:42:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:42:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:42:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure __write_once_size [2022-10-17 17:42:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __write_once_size [2022-10-17 17:42:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2022-10-17 17:42:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2022-10-17 17:42:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 17:42:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 17:42:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:42:00,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:42:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2022-10-17 17:42:00,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2022-10-17 17:42:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2022-10-17 17:42:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2022-10-17 17:42:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2022-10-17 17:42:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2022-10-17 17:42:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-10-17 17:42:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-10-17 17:42:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2022-10-17 17:42:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2022-10-17 17:42:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:42:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:42:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:42:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-10-17 17:42:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-10-17 17:42:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure need_waiter [2022-10-17 17:42:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure need_waiter [2022-10-17 17:42:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:42:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-17 17:42:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:42:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:42:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure smi_send [2022-10-17 17:42:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_send [2022-10-17 17:42:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-10-17 17:42:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-10-17 17:42:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure smi_add_send_msg [2022-10-17 17:42:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_add_send_msg [2022-10-17 17:42:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2022-10-17 17:42:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2022-10-17 17:42:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:42:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:42:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2022-10-17 17:42:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2022-10-17 17:42:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-10-17 17:42:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-10-17 17:42:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 17:42:00,484 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 17:42:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:42:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:42:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2022-10-17 17:42:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2022-10-17 17:42:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2022-10-17 17:42:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2022-10-17 17:42:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 17:42:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 17:42:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:42:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2022-10-17 17:42:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2022-10-17 17:42:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 17:42:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 17:42:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:42:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2022-10-17 17:42:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2022-10-17 17:42:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2022-10-17 17:42:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2022-10-17 17:42:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-17 17:42:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-17 17:42:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-10-17 17:42:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-10-17 17:42:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2022-10-17 17:42:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2022-10-17 17:42:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:42:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2022-10-17 17:42:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2022-10-17 17:42:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2022-10-17 17:42:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2022-10-17 17:42:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-10-17 17:42:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-10-17 17:42:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:42:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:42:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-17 17:42:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-17 17:42:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-10-17 17:42:00,502 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-10-17 17:42:00,502 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-10-17 17:42:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-10-17 17:42:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2022-10-17 17:42:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2022-10-17 17:42:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2022-10-17 17:42:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2022-10-17 17:42:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:42:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:42:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 17:42:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 17:42:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:42:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-10-17 17:42:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-10-17 17:42:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-17 17:42:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-17 17:42:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:42:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:42:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-10-17 17:42:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-10-17 17:42:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2022-10-17 17:42:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2022-10-17 17:42:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-17 17:42:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-17 17:42:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 17:42:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 17:42:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:42:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2022-10-17 17:42:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2022-10-17 17:42:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 17:42:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 17:42:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2022-10-17 17:42:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2022-10-17 17:42:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-10-17 17:42:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-10-17 17:42:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2022-10-17 17:42:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2022-10-17 17:42:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 17:42:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 17:42:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:42:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2022-10-17 17:42:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2022-10-17 17:42:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 17:42:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 17:42:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2022-10-17 17:42:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2022-10-17 17:42:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:42:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-17 17:42:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-17 17:42:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2022-10-17 17:42:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2022-10-17 17:42:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 17:42:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2022-10-17 17:42:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2022-10-17 17:42:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2022-10-17 17:42:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2022-10-17 17:42:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:42:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:42:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-10-17 17:42:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-10-17 17:42:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-17 17:42:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-17 17:42:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 17:42:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 17:42:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_timeout [2022-10-17 17:42:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_timeout [2022-10-17 17:42:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-10-17 17:42:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-10-17 17:42:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 17:42:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 17:42:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-10-17 17:42:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-10-17 17:42:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2022-10-17 17:42:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2022-10-17 17:42:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2022-10-17 17:42:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2022-10-17 17:42:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 17:42:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 17:42:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2022-10-17 17:42:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2022-10-17 17:42:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2022-10-17 17:42:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2022-10-17 17:42:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2022-10-17 17:42:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2022-10-17 17:42:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2022-10-17 17:42:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2022-10-17 17:42:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-17 17:42:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-17 17:42:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:42:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:42:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:42:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-10-17 17:42:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-10-17 17:42:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-17 17:42:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:42:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:42:01,444 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:42:01,453 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:42:02,312 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:42:13,871 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:42:15,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:42:15,683 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:42:15,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:42:15 BoogieIcfgContainer [2022-10-17 17:42:15,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:42:15,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:42:15,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:42:15,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:42:15,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:41:56" (1/3) ... [2022-10-17 17:42:15,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ad2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:42:15, skipping insertion in model container [2022-10-17 17:42:15,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:41:59" (2/3) ... [2022-10-17 17:42:15,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ad2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:42:15, skipping insertion in model container [2022-10-17 17:42:15,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:42:15" (3/3) ... [2022-10-17 17:42:15,706 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2022-10-17 17:42:15,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:42:15,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:42:15,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:42:15,856 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c8dfcaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:42:15,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:42:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 1401 states, 854 states have (on average 1.3934426229508197) internal successors, (1190), 946 states have internal predecessors, (1190), 448 states have call successors, (448), 98 states have call predecessors, (448), 97 states have return successors, (430), 408 states have call predecessors, (430), 430 states have call successors, (430) [2022-10-17 17:42:15,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2022-10-17 17:42:15,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:42:15,920 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:42:15,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:42:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:42:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1760978383, now seen corresponding path program 1 times [2022-10-17 17:42:15,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:42:15,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410594635] [2022-10-17 17:42:15,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:42:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7971 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7971 trivial. 0 not checked. [2022-10-17 17:42:18,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:42:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410594635] [2022-10-17 17:42:18,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410594635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:42:18,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:42:18,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:42:18,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857524162] [2022-10-17 17:42:18,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:42:18,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:42:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:42:18,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:42:18,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:42:18,063 INFO L87 Difference]: Start difference. First operand has 1401 states, 854 states have (on average 1.3934426229508197) internal successors, (1190), 946 states have internal predecessors, (1190), 448 states have call successors, (448), 98 states have call predecessors, (448), 97 states have return successors, (430), 408 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-10-17 17:42:20,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:42:22,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:42:22,728 INFO L93 Difference]: Finished difference Result 3916 states and 5868 transitions. [2022-10-17 17:42:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:42:22,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 583 [2022-10-17 17:42:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:42:22,775 INFO L225 Difference]: With dead ends: 3916 [2022-10-17 17:42:22,775 INFO L226 Difference]: Without dead ends: 2560 [2022-10-17 17:42:22,788 INFO L412 NwaCegarLoop]: 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 [2022-10-17 17:42:22,791 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 1792 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:42:22,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 4131 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-10-17 17:42:22,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2022-10-17 17:42:23,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2556. [2022-10-17 17:42:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1589 states have (on average 1.3838892385147892) internal successors, (2199), 1730 states have internal predecessors, (2199), 777 states have call successors, (777), 190 states have call predecessors, (777), 189 states have return successors, (776), 731 states have call predecessors, (776), 776 states have call successors, (776) [2022-10-17 17:42:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3752 transitions. [2022-10-17 17:42:23,102 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3752 transitions. Word has length 583 [2022-10-17 17:42:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:42:23,110 INFO L495 AbstractCegarLoop]: Abstraction has 2556 states and 3752 transitions. [2022-10-17 17:42:23,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-10-17 17:42:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3752 transitions. [2022-10-17 17:42:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-10-17 17:42:23,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:42:23,135 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:42:23,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:42:23,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:42:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:42:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1215252215, now seen corresponding path program 1 times [2022-10-17 17:42:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:42:23,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820244392] [2022-10-17 17:42:23,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:23,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:42:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 7969 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7969 trivial. 0 not checked. [2022-10-17 17:42:24,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:42:24,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820244392] [2022-10-17 17:42:24,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820244392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:42:24,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:42:24,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:42:24,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720221714] [2022-10-17 17:42:24,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:42:24,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:42:24,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:42:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:42:24,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:42:24,921 INFO L87 Difference]: Start difference. First operand 2556 states and 3752 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61)