./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7 --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 fcc9c58d9e7d331b03ac2a1d31f7075375278be740d6cb0fb532894b4718ca6e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:53:04,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:53:04,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:53:04,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:53:04,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:53:04,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:53:04,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:53:04,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:53:04,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:53:04,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:53:04,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:53:04,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:53:04,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:53:04,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:53:04,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:53:04,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:53:04,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:53:04,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:53:04,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:53:04,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:53:04,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:53:04,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:53:04,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:53:04,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:53:04,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:53:04,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:53:04,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:53:04,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:53:04,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:53:04,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:53:04,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:53:04,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:53:04,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:53:04,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:53:04,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:53:04,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:53:04,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:53:04,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:53:04,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:53:04,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:53:04,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:53:04,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:53:04,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:53:04,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:53:04,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:53:04,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:53:04,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:53:04,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:53:04,450 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:53:04,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:53:04,450 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:53:04,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:53:04,451 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:53:04,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:53:04,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:53:04,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:53:04,452 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:53:04,452 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:53:04,453 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:53:04,453 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:53:04,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:53:04,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:53:04,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:53:04,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:53:04,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:53:04,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:53:04,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:53:04,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:53:04,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:53:04,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:53:04,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:53:04,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:53:04,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:53:04,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:53:04,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:53:04,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:53:04,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:53:04,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:53:04,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:53:04,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:53:04,458 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9c58d9e7d331b03ac2a1d31f7075375278be740d6cb0fb532894b4718ca6e [2021-11-25 18:53:04,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:53:04,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:53:04,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:53:04,759 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:53:04,760 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:53:04,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-25 18:53:04,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/data/252e940c0/1de42eb8e328415dbbd0ee239f57c23e/FLAGa3948cdc7 [2021-11-25 18:53:06,152 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:53:06,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-25 18:53:06,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/data/252e940c0/1de42eb8e328415dbbd0ee239f57c23e/FLAGa3948cdc7 [2021-11-25 18:53:06,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/data/252e940c0/1de42eb8e328415dbbd0ee239f57c23e [2021-11-25 18:53:06,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:53:06,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:53:06,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:53:06,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:53:06,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:53:06,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:53:06" (1/1) ... [2021-11-25 18:53:06,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3275f6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:06, skipping insertion in model container [2021-11-25 18:53:06,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:53:06" (1/1) ... [2021-11-25 18:53:06,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:53:06,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:53:16,892 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_081aeb52-0036-4a8a-a97e-c749de14b6ee/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i[890446,890459] [2021-11-25 18:53:17,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:53:17,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:53:18,260 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_081aeb52-0036-4a8a-a97e-c749de14b6ee/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i[890446,890459] [2021-11-25 18:53:18,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:53:18,666 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:53:18,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18 WrapperNode [2021-11-25 18:53:18,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:53:18,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:53:18,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:53:18,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:53:18,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:18,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:19,488 INFO L137 Inliner]: procedures = 757, calls = 11058, calls flagged for inlining = 310, calls inlined = 146, statements flattened = 13554 [2021-11-25 18:53:19,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:53:19,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:53:19,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:53:19,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:53:19,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:19,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:19,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:19,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:20,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:20,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:20,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:20,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:53:20,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:53:20,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:53:20,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:53:20,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (1/1) ... [2021-11-25 18:53:20,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:53:20,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:53:20,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:53:20,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:53:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_expander_remove [2021-11-25 18:53:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_expander_remove [2021-11-25 18:53:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure _base_event_notification [2021-11-25 18:53:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_event_notification [2021-11-25 18:53:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_alloc [2021-11-25 18:53:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_alloc [2021-11-25 18:53:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-11-25 18:53:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-11-25 18:53:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_check_device [2021-11-25 18:53:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_check_device [2021-11-25 18:53:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_sas_device_find_by_sas_address [2021-11-25 18:53:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_sas_device_find_by_sas_address [2021-11-25 18:53:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_state [2021-11-25 18:53:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_state [2021-11-25 18:53:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_init_warpdrive_properties [2021-11-25 18:53:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_init_warpdrive_properties [2021-11-25 18:53:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure _base_handshake_req_reply_wait [2021-11-25 18:53:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_handshake_req_reply_wait [2021-11-25 18:53:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_prep_device_scan [2021-11-25 18:53:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_prep_device_scan [2021-11-25 18:53:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:53:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:53:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure _base_writeq [2021-11-25 18:53:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_writeq [2021-11-25 18:53:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_topology_change_event [2021-11-25 18:53:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_topology_change_event [2021-11-25 18:53:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-25 18:53:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-25 18:53:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_free [2021-11-25 18:53:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_free [2021-11-25 18:53:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__internal_cmd [2021-11-25 18:53:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__internal_cmd [2021-11-25 18:53:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure _config_request [2021-11-25 18:53:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure _config_request [2021-11-25 18:53:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:53:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:53:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_device_remove_by_handle [2021-11-25 18:53:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_device_remove_by_handle [2021-11-25 18:53:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-25 18:53:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-25 18:53:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_do_mpt_command [2021-11-25 18:53:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_do_mpt_command [2021-11-25 18:53:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_add [2021-11-25 18:53:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_add [2021-11-25 18:53:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_number_pds [2021-11-25 18:53:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_number_pds [2021-11-25 18:53:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scan_start [2021-11-25 18:53:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scan_start [2021-11-25 18:53:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:53:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:53:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-25 18:53:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-25 18:53:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_add [2021-11-25 18:53:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_add [2021-11-25 18:53:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_expanders [2021-11-25 18:53:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_expanders [2021-11-25 18:53:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_slave_destroy [2021-11-25 18:53:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_slave_destroy [2021-11-25 18:53:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_device [2021-11-25 18:53:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_device [2021-11-25 18:53:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_send_release [2021-11-25 18:53:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_send_release [2021-11-25 18:53:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:53:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:53:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ir_shutdown [2021-11-25 18:53:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ir_shutdown [2021-11-25 18:53:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:53:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:53:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-25 18:53:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-25 18:53:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:53:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 18:53:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 18:53:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_build_zero_len_sge [2021-11-25 18:53:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_build_zero_len_sge [2021-11-25 18:53:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_add [2021-11-25 18:53:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_add [2021-11-25 18:53:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure _base_make_ioc_ready [2021-11-25 18:53:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_make_ioc_ready [2021-11-25 18:53:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_reset_handler [2021-11-25 18:53:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_reset_handler [2021-11-25 18:53:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_remove_device [2021-11-25 18:53:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_remove_device [2021-11-25 18:53:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_volume_wwid [2021-11-25 18:53:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_volume_wwid [2021-11-25 18:53:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 18:53:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 18:53:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_target [2021-11-25 18:53:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_target [2021-11-25 18:53:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 18:53:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 18:53:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_shutdown [2021-11-25 18:53:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_shutdown [2021-11-25 18:53:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure _base_free_irq [2021-11-25 18:53:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_free_irq [2021-11-25 18:53:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:53:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:53:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:53:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_display_some_debug [2021-11-25 18:53:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_display_some_debug [2021-11-25 18:53:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:53:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:53:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-25 18:53:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-25 18:53:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_ioctl_main [2021-11-25 18:53:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_ioctl_main [2021-11-25 18:53:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:53:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_add_expander_phy [2021-11-25 18:53:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_add_expander_phy [2021-11-25 18:53:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_for_doorbell_ack [2021-11-25 18:53:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_for_doorbell_ack [2021-11-25 18:53:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_add_host_phy [2021-11-25 18:53:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_add_host_phy [2021-11-25 18:53:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-11-25 18:53:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-11-25 18:53:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:53:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_manufacturing_pg0 [2021-11-25 18:53:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_manufacturing_pg0 [2021-11-25 18:53:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure _base_disable_msix [2021-11-25 18:53:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_disable_msix [2021-11-25 18:53:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ublock_io_device [2021-11-25 18:53:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ublock_io_device [2021-11-25 18:53:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_detach [2021-11-25 18:53:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_detach [2021-11-25 18:53:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:53:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:53:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_manufacturing_pg10 [2021-11-25 18:53:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_manufacturing_pg10 [2021-11-25 18:53:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-25 18:53:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-25 18:53:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scsi_lookup_get_clear [2021-11-25 18:53:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scsi_lookup_get_clear [2021-11-25 18:53:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_disable_ddio [2021-11-25 18:53:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_disable_ddio [2021-11-25 18:53:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_diag_capability [2021-11-25 18:53:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_diag_capability [2021-11-25 18:53:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_internal_device_unblock [2021-11-25 18:53:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_internal_device_unblock [2021-11-25 18:53:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf [2021-11-25 18:53:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf [2021-11-25 18:53:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 18:53:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 18:53:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_remove [2021-11-25 18:53:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_remove [2021-11-25 18:53:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 18:53:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 18:53:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 18:53:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 18:53:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:53:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:53:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure _firmware_event_work [2021-11-25 18:53:20,789 INFO L138 BoogieDeclarations]: Found implementation of procedure _firmware_event_work [2021-11-25 18:53:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_is_host_device [2021-11-25 18:53:20,789 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_is_host_device [2021-11-25 18:53:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-25 18:53:20,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-25 18:53:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_target [2021-11-25 18:53:20,790 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_target [2021-11-25 18:53:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid_scsiio [2021-11-25 18:53:20,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid_scsiio [2021-11-25 18:53:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-25 18:53:20,790 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-25 18:53:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:53:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-25 18:53:20,790 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-25 18:53:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_convert_phy_link_rate [2021-11-25 18:53:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_convert_phy_link_rate [2021-11-25 18:53:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_config_change_event [2021-11-25 18:53:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_config_change_event [2021-11-25 18:53:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_fault_info [2021-11-25 18:53:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_fault_info [2021-11-25 18:53:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:53:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:53:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:53:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_sas_address [2021-11-25 18:53:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_sas_address [2021-11-25 18:53:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_iounit_pg1 [2021-11-25 18:53:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_iounit_pg1 [2021-11-25 18:53:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:53:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_pd_add [2021-11-25 18:53:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_pd_add [2021-11-25 18:53:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_iounit_pg0 [2021-11-25 18:53:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_iounit_pg0 [2021-11-25 18:53:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:53:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_set_identify [2021-11-25 18:53:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_set_identify [2021-11-25 18:53:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:53:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:53:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_enable_diag_buffer [2021-11-25 18:53:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_enable_diag_buffer [2021-11-25 18:53:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-11-25 18:53:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-11-25 18:53:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_host_refresh [2021-11-25 18:53:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_host_refresh [2021-11-25 18:53:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_set_iounit_pg1 [2021-11-25 18:53:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_set_iounit_pg1 [2021-11-25 18:53:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_wwid [2021-11-25 18:53:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_wwid [2021-11-25 18:53:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_scsi_enclosure_processor [2021-11-25 18:53:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_scsi_enclosure_processor [2021-11-25 18:53:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_pd_hide [2021-11-25 18:53:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_pd_hide [2021-11-25 18:53:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_update_links [2021-11-25 18:53:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_update_links [2021-11-25 18:53:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_turn_on_fault_led [2021-11-25 18:53:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_turn_on_fault_led [2021-11-25 18:53:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_for_doorbell_int [2021-11-25 18:53:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_for_doorbell_int [2021-11-25 18:53:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_resync [2021-11-25 18:53:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_resync [2021-11-25 18:53:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__internal_cmd [2021-11-25 18:53:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__internal_cmd [2021-11-25 18:53:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_check_access_status [2021-11-25 18:53:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_check_access_status [2021-11-25 18:53:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_volume_handle [2021-11-25 18:53:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_volume_handle [2021-11-25 18:53:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_expander_pg0 [2021-11-25 18:53:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_expander_pg0 [2021-11-25 18:53:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_expander_pg1 [2021-11-25 18:53:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_expander_pg1 [2021-11-25 18:53:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 18:53:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 18:53:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:53:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:53:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid_hpr [2021-11-25 18:53:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid_hpr [2021-11-25 18:53:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_handle [2021-11-25 18:53:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_handle [2021-11-25 18:53:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of__internal_cmd [2021-11-25 18:53:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of__internal_cmd [2021-11-25 18:53:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_device_remove_by_sas_address [2021-11-25 18:53:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_device_remove_by_sas_address [2021-11-25 18:53:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-25 18:53:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-25 18:53:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure _base_reset_handler [2021-11-25 18:53:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_reset_handler [2021-11-25 18:53:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_hard_reset_handler [2021-11-25 18:53:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_hard_reset_handler [2021-11-25 18:53:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 18:53:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 18:53:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure _base_get_msix_index [2021-11-25 18:53:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_get_msix_index [2021-11-25 18:53:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-25 18:53:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-25 18:53:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:53:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:53:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:53:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:53:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-11-25 18:53:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-11-25 18:53:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_discovery_event [2021-11-25 18:53:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_discovery_event [2021-11-25 18:53:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure _base_make_ioc_operational [2021-11-25 18:53:20,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_make_ioc_operational [2021-11-25 18:53:20,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:53:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:53:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_port_remove [2021-11-25 18:53:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_port_remove [2021-11-25 18:53:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_free_resources [2021-11-25 18:53:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_free_resources [2021-11-25 18:53:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:53:20,819 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:53:20,819 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_num_volumes [2021-11-25 18:53:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_num_volumes [2021-11-25 18:53:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_diag_register_2 [2021-11-25 18:53:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_diag_register_2 [2021-11-25 18:53:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_port_add [2021-11-25 18:53:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_port_add [2021-11-25 18:53:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_number_hba_phys [2021-11-25 18:53:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_number_hba_phys [2021-11-25 18:53:20,820 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 18:53:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 18:53:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:53:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:53:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_id [2021-11-25 18:53:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_id [2021-11-25 18:53:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_is_boot_device [2021-11-25 18:53:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_is_boot_device [2021-11-25 18:53:20,821 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_scsilun [2021-11-25 18:53:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_scsilun [2021-11-25 18:53:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-25 18:53:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-25 18:53:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-25 18:53:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-25 18:53:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 18:53:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure _base_release_memory_pools [2021-11-25 18:53:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_release_memory_pools [2021-11-25 18:53:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___1 [2021-11-25 18:53:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___1 [2021-11-25 18:53:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure attribute_container_find_class_device [2021-11-25 18:53:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure attribute_container_find_class_device [2021-11-25 18:53:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___3 [2021-11-25 18:53:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___3 [2021-11-25 18:53:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___2 [2021-11-25 18:53:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___2 [2021-11-25 18:53:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_sense_buffer_dma [2021-11-25 18:53:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_sense_buffer_dma [2021-11-25 18:53:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_default [2021-11-25 18:53:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_default [2021-11-25 18:53:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_start_watchdog [2021-11-25 18:53:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_start_watchdog [2021-11-25 18:53:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_host_add [2021-11-25 18:53:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_host_add [2021-11-25 18:53:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-25 18:53:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-25 18:53:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-25 18:53:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-25 18:53:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-11-25 18:53:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-11-25 18:53:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-11-25 18:53:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-11-25 18:53:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 18:53:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 18:53:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 18:53:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 18:53:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ublock_io_all_device [2021-11-25 18:53:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ublock_io_all_device [2021-11-25 18:53:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_broadcast_primitive_event [2021-11-25 18:53:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_broadcast_primitive_event [2021-11-25 18:53:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:53:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:53:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid [2021-11-25 18:53:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid [2021-11-25 18:53:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 18:53:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 18:53:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 18:53:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 18:53:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 18:53:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 18:53:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_free [2021-11-25 18:53:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_free [2021-11-25 18:53:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_mark_responding_raid_device [2021-11-25 18:53:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_mark_responding_raid_device [2021-11-25 18:53:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_is_end_device [2021-11-25 18:53:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_is_end_device [2021-11-25 18:53:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_determine_boot_device [2021-11-25 18:53:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_determine_boot_device [2021-11-25 18:53:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 18:53:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 18:53:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:53:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:53:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:53:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure _config_display_some_debug [2021-11-25 18:53:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure _config_display_some_debug [2021-11-25 18:53:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_phy_pg0 [2021-11-25 18:53:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_phy_pg0 [2021-11-25 18:53:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_stop_watchdog [2021-11-25 18:53:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_stop_watchdog [2021-11-25 18:53:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:53:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_physical_disk_event [2021-11-25 18:53:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_physical_disk_event [2021-11-25 18:53:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-25 18:53:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-25 18:53:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure starget_for_each_device [2021-11-25 18:53:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure starget_for_each_device [2021-11-25 18:53:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-11-25 18:53:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-11-25 18:53:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_halt_firmware [2021-11-25 18:53:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_halt_firmware [2021-11-25 18:53:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_remove [2021-11-25 18:53:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_remove [2021-11-25 18:53:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_msg_frame [2021-11-25 18:53:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_msg_frame [2021-11-25 18:53:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_volume_event [2021-11-25 18:53:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_volume_event [2021-11-25 18:53:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure _base_static_config_pages [2021-11-25 18:53:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_static_config_pages [2021-11-25 18:53:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:53:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_add_device [2021-11-25 18:53:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_add_device [2021-11-25 18:53:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:53:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:53:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-25 18:53:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:53:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 18:53:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 18:53:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_expander_node_remove [2021-11-25 18:53:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_expander_node_remove [2021-11-25 18:53:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_bios_pg3 [2021-11-25 18:53:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_bios_pg3 [2021-11-25 18:53:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_raid_devices [2021-11-25 18:53:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_raid_devices [2021-11-25 18:53:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_bios_pg2 [2021-11-25 18:53:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_bios_pg2 [2021-11-25 18:53:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure _base_mask_interrupts [2021-11-25 18:53:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_mask_interrupts [2021-11-25 18:53:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_remove [2021-11-25 18:53:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_remove [2021-11-25 18:53:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scan_for_devices_after_reset [2021-11-25 18:53:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scan_for_devices_after_reset [2021-11-25 18:53:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 18:53:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 18:53:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_expander_report_manufacture [2021-11-25 18:53:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_expander_report_manufacture [2021-11-25 18:53:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-25 18:53:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-25 18:53:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-25 18:53:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-25 18:53:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_flush_running_cmds [2021-11-25 18:53:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_flush_running_cmds [2021-11-25 18:53:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_enclosure_pg0 [2021-11-25 18:53:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_enclosure_pg0 [2021-11-25 18:53:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2021-11-25 18:53:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2021-11-25 18:53:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-25 18:53:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-25 18:53:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_set_tm_flag [2021-11-25 18:53:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_set_tm_flag [2021-11-25 18:53:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_sas_devices [2021-11-25 18:53:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_sas_devices [2021-11-25 18:53:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_device_pg0 [2021-11-25 18:53:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_device_pg0 [2021-11-25 18:53:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure _base_is_controller_msix_enabled [2021-11-25 18:53:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_is_controller_msix_enabled [2021-11-25 18:53:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 18:53:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 18:53:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure _base_fault_reset_work [2021-11-25 18:53:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_fault_reset_work [2021-11-25 18:53:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:53:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:53:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_internal_device_block [2021-11-25 18:53:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_internal_device_block [2021-11-25 18:53:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_find_by_handle [2021-11-25 18:53:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_find_by_handle [2021-11-25 18:53:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_add [2021-11-25 18:53:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_add [2021-11-25 18:53:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_free_smid [2021-11-25 18:53:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_free_smid [2021-11-25 18:53:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_issue_tm [2021-11-25 18:53:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_issue_tm [2021-11-25 18:53:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_refresh_expander_links [2021-11-25 18:53:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_refresh_expander_links [2021-11-25 18:53:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure sas_port_delete_phy [2021-11-25 18:53:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_port_delete_phy [2021-11-25 18:53:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_iocstate [2021-11-25 18:53:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_iocstate [2021-11-25 18:53:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:53:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:53:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-25 18:53:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-25 18:53:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:53:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_expander_find_by_sas_address [2021-11-25 18:53:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_expander_find_by_sas_address [2021-11-25 18:53:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_hi_priority [2021-11-25 18:53:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_hi_priority [2021-11-25 18:53:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:53:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:53:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_on_iocstate [2021-11-25 18:53:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_on_iocstate [2021-11-25 18:53:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_volume_delete [2021-11-25 18:53:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_volume_delete [2021-11-25 18:53:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_target_destroy [2021-11-25 18:53:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_target_destroy [2021-11-25 18:53:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_cleanup_queue [2021-11-25 18:53:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_cleanup_queue [2021-11-25 18:53:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_pci_resume [2021-11-25 18:53:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_pci_resume [2021-11-25 18:53:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_volume_add [2021-11-25 18:53:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_volume_add [2021-11-25 18:53:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unblock_requests [2021-11-25 18:53:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unblock_requests [2021-11-25 18:53:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:53:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:53:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_raid_volume_pg0 [2021-11-25 18:53:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_raid_volume_pg0 [2021-11-25 18:53:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_raid_volume_pg1 [2021-11-25 18:53:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_raid_volume_pg1 [2021-11-25 18:53:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-25 18:53:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-25 18:53:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_scsi_io [2021-11-25 18:53:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_scsi_io [2021-11-25 18:53:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_clear_tm_flag [2021-11-25 18:53:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_clear_tm_flag [2021-11-25 18:53:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure sas_port_add_phy [2021-11-25 18:53:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_port_add_phy [2021-11-25 18:53:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_shost [2021-11-25 18:53:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_shost [2021-11-25 18:53:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_phys_disk_pg0 [2021-11-25 18:53:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_phys_disk_pg0 [2021-11-25 18:53:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_iounit_pg1 [2021-11-25 18:53:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_iounit_pg1 [2021-11-25 18:53:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 18:53:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 18:53:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_ioc_pg8 [2021-11-25 18:53:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_ioc_pg8 [2021-11-25 18:53:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_iounit_pg0 [2021-11-25 18:53:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_iounit_pg0 [2021-11-25 18:53:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 18:53:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 18:53:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_sas_node_find_by_sas_address [2021-11-25 18:53:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_sas_node_find_by_sas_address [2021-11-25 18:53:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 18:53:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 18:53:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 18:53:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 18:53:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 18:53:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 18:53:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_expander_find_by_handle [2021-11-25 18:53:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_expander_find_by_handle [2021-11-25 18:53:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:53:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_expander_add [2021-11-25 18:53:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_expander_add [2021-11-25 18:53:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_response_code [2021-11-25 18:53:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_response_code [2021-11-25 18:53:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:53:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:53:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 18:53:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-25 18:53:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-25 18:53:22,514 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:53:22,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:53:43,820 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:53:51,650 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:53:51,650 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 18:53:51,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:53:51 BoogieIcfgContainer [2021-11-25 18:53:51,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:53:51,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:53:51,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:53:51,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:53:51,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:53:06" (1/3) ... [2021-11-25 18:53:51,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d1244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:53:51, skipping insertion in model container [2021-11-25 18:53:51,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:18" (2/3) ... [2021-11-25 18:53:51,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d1244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:53:51, skipping insertion in model container [2021-11-25 18:53:51,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:53:51" (3/3) ... [2021-11-25 18:53:51,674 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-25 18:53:51,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:53:51,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:53:51,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:53:51,750 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=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:53:51,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:53:51,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 3817 states, 2348 states have (on average 1.3560477001703577) internal successors, (3184), 2476 states have internal predecessors, (3184), 1223 states have call successors, (1223), 245 states have call predecessors, (1223), 245 states have return successors, (1223), 1177 states have call predecessors, (1223), 1223 states have call successors, (1223) [2021-11-25 18:53:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 18:53:51,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:51,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:53:51,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:51,870 INFO L85 PathProgramCache]: Analyzing trace with hash 382203273, now seen corresponding path program 1 times [2021-11-25 18:53:51,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:51,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693737058] [2021-11-25 18:53:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:51,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:53:52,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:52,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693737058] [2021-11-25 18:53:52,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693737058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:52,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:52,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:53:52,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023434827] [2021-11-25 18:53:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:52,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:53:52,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:53,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:53:53,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:53,030 INFO L87 Difference]: Start difference. First operand has 3817 states, 2348 states have (on average 1.3560477001703577) internal successors, (3184), 2476 states have internal predecessors, (3184), 1223 states have call successors, (1223), 245 states have call predecessors, (1223), 245 states have return successors, (1223), 1177 states have call predecessors, (1223), 1223 states have call successors, (1223) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:53:56,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:53:57,992 INFO L93 Difference]: Finished difference Result 7625 states and 11471 transitions. [2021-11-25 18:53:57,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:53:57,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-25 18:53:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:53:58,053 INFO L225 Difference]: With dead ends: 7625 [2021-11-25 18:53:58,053 INFO L226 Difference]: Without dead ends: 3804 [2021-11-25 18:53:58,104 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 [2021-11-25 18:53:58,111 INFO L933 BasicCegarLoop]: 5042 mSDtfsCounter, 5603 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5603 SdHoareTripleChecker+Valid, 5043 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:53:58,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5603 Valid, 5043 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-25 18:53:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2021-11-25 18:53:58,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3804. [2021-11-25 18:53:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 2339 states have (on average 1.3535699016673792) internal successors, (3166), 2463 states have internal predecessors, (3166), 1221 states have call successors, (1221), 245 states have call predecessors, (1221), 243 states have return successors, (1211), 1165 states have call predecessors, (1211), 1211 states have call successors, (1211) [2021-11-25 18:53:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5598 transitions. [2021-11-25 18:53:58,521 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5598 transitions. Word has length 10 [2021-11-25 18:53:58,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:58,521 INFO L470 AbstractCegarLoop]: Abstraction has 3804 states and 5598 transitions. [2021-11-25 18:53:58,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:53:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5598 transitions. [2021-11-25 18:53:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:53:58,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:58,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:53:58,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:53:58,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:58,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1038783013, now seen corresponding path program 1 times [2021-11-25 18:53:58,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:58,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363561552] [2021-11-25 18:53:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:58,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:53:59,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:59,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363561552] [2021-11-25 18:53:59,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363561552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:59,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:59,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:53:59,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15447596] [2021-11-25 18:53:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:59,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:53:59,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:53:59,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:59,170 INFO L87 Difference]: Start difference. First operand 3804 states and 5598 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:08,779 INFO L93 Difference]: Finished difference Result 9822 states and 14714 transitions. [2021-11-25 18:54:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:08,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 18:54:08,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:08,837 INFO L225 Difference]: With dead ends: 9822 [2021-11-25 18:54:08,837 INFO L226 Difference]: Without dead ends: 6022 [2021-11-25 18:54:08,872 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 [2021-11-25 18:54:08,874 INFO L933 BasicCegarLoop]: 7774 mSDtfsCounter, 4706 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4706 SdHoareTripleChecker+Valid, 11423 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:08,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4706 Valid, 11423 Invalid, 1367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-11-25 18:54:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-11-25 18:54:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 6017. [2021-11-25 18:54:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 3681 states have (on average 1.3425699538168976) internal successors, (4942), 3902 states have internal predecessors, (4942), 1919 states have call successors, (1919), 441 states have call predecessors, (1919), 416 states have return successors, (1966), 1796 states have call predecessors, (1966), 1902 states have call successors, (1966) [2021-11-25 18:54:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 8827 transitions. [2021-11-25 18:54:09,274 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 8827 transitions. Word has length 11 [2021-11-25 18:54:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:09,275 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 8827 transitions. [2021-11-25 18:54:09,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 8827 transitions. [2021-11-25 18:54:09,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:54:09,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:09,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:54:09,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:54:09,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:54:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2139680052, now seen corresponding path program 1 times [2021-11-25 18:54:09,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:09,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241644482] [2021-11-25 18:54:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:09,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:54:09,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:09,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241644482] [2021-11-25 18:54:09,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241644482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:09,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:09,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:54:09,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465647065] [2021-11-25 18:54:09,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:09,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:54:09,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:09,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:54:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:54:09,949 INFO L87 Difference]: Start difference. First operand 6017 states and 8827 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:12,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:15,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:16,553 INFO L93 Difference]: Finished difference Result 6041 states and 8852 transitions. [2021-11-25 18:54:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-25 18:54:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:16,603 INFO L225 Difference]: With dead ends: 6041 [2021-11-25 18:54:16,603 INFO L226 Difference]: Without dead ends: 6038 [2021-11-25 18:54:16,607 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 [2021-11-25 18:54:16,610 INFO L933 BasicCegarLoop]: 5034 mSDtfsCounter, 5579 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 5058 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:16,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5581 Valid, 5058 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 572 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 18:54:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-11-25 18:54:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6032. [2021-11-25 18:54:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 3690 states have (on average 1.3417344173441734) internal successors, (4951), 3911 states have internal predecessors, (4951), 1921 states have call successors, (1921), 445 states have call predecessors, (1921), 420 states have return successors, (1969), 1798 states have call predecessors, (1969), 1905 states have call successors, (1969) [2021-11-25 18:54:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8841 transitions. [2021-11-25 18:54:17,048 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8841 transitions. Word has length 12 [2021-11-25 18:54:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:17,049 INFO L470 AbstractCegarLoop]: Abstraction has 6032 states and 8841 transitions. [2021-11-25 18:54:17,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8841 transitions. [2021-11-25 18:54:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:54:17,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:17,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:54:17,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:54:17,051 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:54:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1907745026, now seen corresponding path program 1 times [2021-11-25 18:54:17,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944705944] [2021-11-25 18:54:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:17,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:54:17,661 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:17,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944705944] [2021-11-25 18:54:17,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944705944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:17,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:17,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:54:17,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862709854] [2021-11-25 18:54:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:17,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:54:17,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:17,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:54:17,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:54:17,665 INFO L87 Difference]: Start difference. First operand 6032 states and 8841 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:20,997 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 [] [2021-11-25 18:54:23,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:27,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:29,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:35,208 INFO L93 Difference]: Finished difference Result 18031 states and 27646 transitions. [2021-11-25 18:54:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:35,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-11-25 18:54:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:35,330 INFO L225 Difference]: With dead ends: 18031 [2021-11-25 18:54:35,330 INFO L226 Difference]: Without dead ends: 11998 [2021-11-25 18:54:35,392 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 [2021-11-25 18:54:35,393 INFO L933 BasicCegarLoop]: 9260 mSDtfsCounter, 5750 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5750 SdHoareTripleChecker+Valid, 14474 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:35,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5750 Valid, 14474 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1506 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2021-11-25 18:54:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11998 states. [2021-11-25 18:54:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11998 to 11973. [2021-11-25 18:54:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11973 states, 7323 states have (on average 1.3427557012153488) internal successors, (9833), 7761 states have internal predecessors, (9833), 3812 states have call successors, (3812), 885 states have call predecessors, (3812), 837 states have return successors, (4507), 3570 states have call predecessors, (4507), 3795 states have call successors, (4507) [2021-11-25 18:54:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11973 states to 11973 states and 18152 transitions. [2021-11-25 18:54:36,315 INFO L78 Accepts]: Start accepts. Automaton has 11973 states and 18152 transitions. Word has length 13 [2021-11-25 18:54:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:36,316 INFO L470 AbstractCegarLoop]: Abstraction has 11973 states and 18152 transitions. [2021-11-25 18:54:36,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:54:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 11973 states and 18152 transitions. [2021-11-25 18:54:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 18:54:36,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:36,326 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] [2021-11-25 18:54:36,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:54:36,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:54:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash -917307426, now seen corresponding path program 1 times [2021-11-25 18:54:36,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:36,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401191859] [2021-11-25 18:54:36,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:36,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:54:37,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:37,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401191859] [2021-11-25 18:54:37,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401191859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:37,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:37,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:54:37,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970807925] [2021-11-25 18:54:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:37,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:54:37,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:37,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:54:37,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:54:37,179 INFO L87 Difference]: Start difference. First operand 11973 states and 18152 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:54:38,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:46,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:48,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:50,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:52,377 INFO L93 Difference]: Finished difference Result 23958 states and 36348 transitions. [2021-11-25 18:54:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:54:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-11-25 18:54:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:52,465 INFO L225 Difference]: With dead ends: 23958 [2021-11-25 18:54:52,465 INFO L226 Difference]: Without dead ends: 11989 [2021-11-25 18:54:52,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:54:52,543 INFO L933 BasicCegarLoop]: 5032 mSDtfsCounter, 2 mSDsluCounter, 11190 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15093 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:52,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 15093 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1700 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2021-11-25 18:54:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11989 states. [2021-11-25 18:54:53,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11989 to 11989. [2021-11-25 18:54:53,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11989 states, 7335 states have (on average 1.3421949556918882) internal successors, (9845), 7777 states have internal predecessors, (9845), 3812 states have call successors, (3812), 885 states have call predecessors, (3812), 841 states have return successors, (4515), 3570 states have call predecessors, (4515), 3795 states have call successors, (4515) [2021-11-25 18:54:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11989 states to 11989 states and 18172 transitions. [2021-11-25 18:54:53,466 INFO L78 Accepts]: Start accepts. Automaton has 11989 states and 18172 transitions. Word has length 52 [2021-11-25 18:54:53,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:53,466 INFO L470 AbstractCegarLoop]: Abstraction has 11989 states and 18172 transitions. [2021-11-25 18:54:53,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:54:53,467 INFO L276 IsEmpty]: Start isEmpty. Operand 11989 states and 18172 transitions. [2021-11-25 18:54:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 18:54:53,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:53,474 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] [2021-11-25 18:54:53,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:54:53,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:54:53,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:53,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1169484856, now seen corresponding path program 1 times [2021-11-25 18:54:53,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:53,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629381548] [2021-11-25 18:54:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:53,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:54:54,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:54,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629381548] [2021-11-25 18:54:54,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629381548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:54,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:54,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:54:54,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323837343] [2021-11-25 18:54:54,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:54,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:54:54,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:54,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:54:54,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:54:54,362 INFO L87 Difference]: Start difference. First operand 11989 states and 18172 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-25 18:54:55,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:57,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:58,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:05,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:08,619 INFO L93 Difference]: Finished difference Result 28963 states and 44906 transitions. [2021-11-25 18:55:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:55:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2021-11-25 18:55:08,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:08,724 INFO L225 Difference]: With dead ends: 28963 [2021-11-25 18:55:08,724 INFO L226 Difference]: Without dead ends: 16978 [2021-11-25 18:55:08,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:55:08,995 INFO L933 BasicCegarLoop]: 5925 mSDtfsCounter, 4027 mSDsluCounter, 10504 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 15375 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:08,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4027 Valid, 15375 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2021-11-25 18:55:09,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16978 states. [2021-11-25 18:55:10,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16978 to 16945. [2021-11-25 18:55:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16945 states, 10384 states have (on average 1.345724191063174) internal successors, (13974), 11049 states have internal predecessors, (13974), 5364 states have call successors, (5364), 1282 states have call predecessors, (5364), 1196 states have return successors, (6066), 4965 states have call predecessors, (6066), 5277 states have call successors, (6066) [2021-11-25 18:55:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16945 states to 16945 states and 25404 transitions. [2021-11-25 18:55:10,200 INFO L78 Accepts]: Start accepts. Automaton has 16945 states and 25404 transitions. Word has length 56 [2021-11-25 18:55:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:10,202 INFO L470 AbstractCegarLoop]: Abstraction has 16945 states and 25404 transitions. [2021-11-25 18:55:10,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-25 18:55:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 16945 states and 25404 transitions. [2021-11-25 18:55:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-25 18:55:10,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:10,204 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] [2021-11-25 18:55:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:55:10,205 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:55:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash -688679201, now seen corresponding path program 1 times [2021-11-25 18:55:10,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:10,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065272426] [2021-11-25 18:55:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:55:11,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:11,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065272426] [2021-11-25 18:55:11,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065272426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:11,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:11,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:55:11,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587704757] [2021-11-25 18:55:11,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:11,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:55:11,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:11,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:55:11,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:55:11,205 INFO L87 Difference]: Start difference. First operand 16945 states and 25404 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-25 18:55:13,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:16,828 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 [] [2021-11-25 18:55:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:39,631 INFO L93 Difference]: Finished difference Result 18996 states and 28650 transitions. [2021-11-25 18:55:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:55:39,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 54 [2021-11-25 18:55:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:39,742 INFO L225 Difference]: With dead ends: 18996 [2021-11-25 18:55:39,743 INFO L226 Difference]: Without dead ends: 18988 [2021-11-25 18:55:39,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:55:39,753 INFO L933 BasicCegarLoop]: 6954 mSDtfsCounter, 8866 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 6680 mSolverCounterSat, 7340 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9768 SdHoareTripleChecker+Valid, 9730 SdHoareTripleChecker+Invalid, 14022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7340 IncrementalHoareTripleChecker+Valid, 6680 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:39,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9768 Valid, 9730 Invalid, 14022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7340 Valid, 6680 Invalid, 2 Unknown, 0 Unchecked, 27.4s Time] [2021-11-25 18:55:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18988 states. [2021-11-25 18:55:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18988 to 18928. [2021-11-25 18:55:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18928 states, 11653 states have (on average 1.3500386166652365) internal successors, (15732), 12386 states have internal predecessors, (15732), 5964 states have call successors, (5964), 1296 states have call predecessors, (5964), 1310 states have return successors, (6867), 5641 states have call predecessors, (6867), 5877 states have call successors, (6867) [2021-11-25 18:55:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18928 states to 18928 states and 28563 transitions. [2021-11-25 18:55:41,463 INFO L78 Accepts]: Start accepts. Automaton has 18928 states and 28563 transitions. Word has length 54 [2021-11-25 18:55:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:41,464 INFO L470 AbstractCegarLoop]: Abstraction has 18928 states and 28563 transitions. [2021-11-25 18:55:41,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-25 18:55:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18928 states and 28563 transitions. [2021-11-25 18:55:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:55:41,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:41,469 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] [2021-11-25 18:55:41,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:55:41,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:55:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1274308141, now seen corresponding path program 1 times [2021-11-25 18:55:41,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:41,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539829162] [2021-11-25 18:55:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:41,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:55:42,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:42,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539829162] [2021-11-25 18:55:42,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539829162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:42,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:42,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:55:42,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586292843] [2021-11-25 18:55:42,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:42,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:55:42,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:55:42,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:55:42,145 INFO L87 Difference]: Start difference. First operand 18928 states and 28563 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-25 18:55:44,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:46,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:49,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:57,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:02,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:06,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:56:06,325 INFO L93 Difference]: Finished difference Result 45280 states and 68164 transitions. [2021-11-25 18:56:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:56:06,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2021-11-25 18:56:06,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:56:06,484 INFO L225 Difference]: With dead ends: 45280 [2021-11-25 18:56:06,485 INFO L226 Difference]: Without dead ends: 26356 [2021-11-25 18:56:06,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:56:06,601 INFO L933 BasicCegarLoop]: 8011 mSDtfsCounter, 8087 mSDsluCounter, 15861 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 3238 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8087 SdHoareTripleChecker+Valid, 22297 SdHoareTripleChecker+Invalid, 5810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3238 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:56:06,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8087 Valid, 22297 Invalid, 5810 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3238 Valid, 2571 Invalid, 1 Unknown, 0 Unchecked, 23.0s Time] [2021-11-25 18:56:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26356 states. [2021-11-25 18:56:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26356 to 26167. [2021-11-25 18:56:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26167 states, 15986 states have (on average 1.3446765920180157) internal successors, (21496), 17105 states have internal predecessors, (21496), 8242 states have call successors, (8242), 1984 states have call predecessors, (8242), 1938 states have return successors, (9299), 7673 states have call predecessors, (9299), 8051 states have call successors, (9299) [2021-11-25 18:56:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26167 states to 26167 states and 39037 transitions. [2021-11-25 18:56:08,928 INFO L78 Accepts]: Start accepts. Automaton has 26167 states and 39037 transitions. Word has length 57 [2021-11-25 18:56:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:56:08,930 INFO L470 AbstractCegarLoop]: Abstraction has 26167 states and 39037 transitions. [2021-11-25 18:56:08,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-25 18:56:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 26167 states and 39037 transitions. [2021-11-25 18:56:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 18:56:08,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:56:08,933 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] [2021-11-25 18:56:08,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:56:08,934 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:56:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:56:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1939931897, now seen corresponding path program 1 times [2021-11-25 18:56:08,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:56:08,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048092931] [2021-11-25 18:56:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:56:08,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:56:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:56:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:56:09,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:56:09,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048092931] [2021-11-25 18:56:09,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048092931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:56:09,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:56:09,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 18:56:09,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131369739] [2021-11-25 18:56:09,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:56:09,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 18:56:09,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:56:09,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 18:56:09,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:56:09,922 INFO L87 Difference]: Start difference. First operand 26167 states and 39037 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-25 18:56:12,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:16,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:17,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:19,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:21,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:56:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:56:51,608 INFO L93 Difference]: Finished difference Result 26448 states and 39406 transitions. [2021-11-25 18:56:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:56:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 58 [2021-11-25 18:56:51,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:56:51,727 INFO L225 Difference]: With dead ends: 26448 [2021-11-25 18:56:51,727 INFO L226 Difference]: Without dead ends: 26440 [2021-11-25 18:56:51,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:56:51,741 INFO L933 BasicCegarLoop]: 7175 mSDtfsCounter, 14328 mSDsluCounter, 6597 mSDsCounter, 0 mSdLazyCounter, 8443 mSolverCounterSat, 13319 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15229 SdHoareTripleChecker+Valid, 12807 SdHoareTripleChecker+Invalid, 21764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13319 IncrementalHoareTripleChecker+Valid, 8443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:56:51,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15229 Valid, 12807 Invalid, 21764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13319 Valid, 8443 Invalid, 2 Unknown, 0 Unchecked, 40.4s Time] [2021-11-25 18:56:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26440 states. [2021-11-25 18:56:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26440 to 26287. [2021-11-25 18:56:53,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26287 states, 16066 states have (on average 1.3446408564670733) internal successors, (21603), 17185 states have internal predecessors, (21603), 8270 states have call successors, (8270), 1996 states have call predecessors, (8270), 1950 states have return successors, (9343), 7701 states have call predecessors, (9343), 8079 states have call successors, (9343) [2021-11-25 18:56:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26287 states to 26287 states and 39216 transitions. [2021-11-25 18:56:53,317 INFO L78 Accepts]: Start accepts. Automaton has 26287 states and 39216 transitions. Word has length 58 [2021-11-25 18:56:53,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:56:53,318 INFO L470 AbstractCegarLoop]: Abstraction has 26287 states and 39216 transitions. [2021-11-25 18:56:53,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-25 18:56:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand 26287 states and 39216 transitions. [2021-11-25 18:56:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 18:56:53,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:56:53,326 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-25 18:56:53,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:56:53,326 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:56:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:56:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash 157353087, now seen corresponding path program 1 times [2021-11-25 18:56:53,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:56:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061436431] [2021-11-25 18:56:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:56:53,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:56:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:56:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:56:53,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:56:53,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061436431] [2021-11-25 18:56:53,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061436431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:56:53,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:56:53,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:56:53,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717281770] [2021-11-25 18:56:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:56:53,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:56:53,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:56:53,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:56:53,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:56:53,855 INFO L87 Difference]: Start difference. First operand 26287 states and 39216 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-25 18:56:56,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:57:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:57:03,146 INFO L93 Difference]: Finished difference Result 52578 states and 78460 transitions. [2021-11-25 18:57:03,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:57:03,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2021-11-25 18:57:03,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:57:03,300 INFO L225 Difference]: With dead ends: 52578 [2021-11-25 18:57:03,300 INFO L226 Difference]: Without dead ends: 26295 [2021-11-25 18:57:03,441 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 [2021-11-25 18:57:03,442 INFO L933 BasicCegarLoop]: 5017 mSDtfsCounter, 2 mSDsluCounter, 5579 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10032 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:57:03,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10032 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 18:57:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26295 states. [2021-11-25 18:57:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26295 to 26291. [2021-11-25 18:57:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26291 states, 16070 states have (on average 1.3445550715619166) internal successors, (21607), 17189 states have internal predecessors, (21607), 8270 states have call successors, (8270), 1996 states have call predecessors, (8270), 1950 states have return successors, (9343), 7701 states have call predecessors, (9343), 8079 states have call successors, (9343) [2021-11-25 18:57:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26291 states to 26291 states and 39220 transitions. [2021-11-25 18:57:05,077 INFO L78 Accepts]: Start accepts. Automaton has 26291 states and 39220 transitions. Word has length 87 [2021-11-25 18:57:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:57:05,077 INFO L470 AbstractCegarLoop]: Abstraction has 26291 states and 39220 transitions. [2021-11-25 18:57:05,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-25 18:57:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 26291 states and 39220 transitions. [2021-11-25 18:57:05,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 18:57:05,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:57:05,084 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-25 18:57:05,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:57:05,085 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:57:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:57:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -955078979, now seen corresponding path program 1 times [2021-11-25 18:57:05,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:57:05,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069247138] [2021-11-25 18:57:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:57:05,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:57:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:57:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:57:05,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:57:05,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069247138] [2021-11-25 18:57:05,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069247138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:57:05,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:57:05,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:57:05,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987392532] [2021-11-25 18:57:05,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:57:05,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:57:05,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:57:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:57:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:57:05,908 INFO L87 Difference]: Start difference. First operand 26291 states and 39220 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-25 18:57:07,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:57:12,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:57:16,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:57:16,283 INFO L93 Difference]: Finished difference Result 52582 states and 78460 transitions. [2021-11-25 18:57:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:57:16,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2021-11-25 18:57:16,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:57:16,401 INFO L225 Difference]: With dead ends: 52582 [2021-11-25 18:57:16,402 INFO L226 Difference]: Without dead ends: 26295 [2021-11-25 18:57:16,492 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 [2021-11-25 18:57:16,493 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 0 mSDsluCounter, 5579 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10034 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:57:16,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10034 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1131 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-11-25 18:57:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26295 states. [2021-11-25 18:57:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26295 to 26295. [2021-11-25 18:57:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26295 states, 16074 states have (on average 1.3444693293517482) internal successors, (21611), 17193 states have internal predecessors, (21611), 8270 states have call successors, (8270), 1996 states have call predecessors, (8270), 1950 states have return successors, (9343), 7701 states have call predecessors, (9343), 8079 states have call successors, (9343) [2021-11-25 18:57:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26295 states to 26295 states and 39224 transitions. [2021-11-25 18:57:18,167 INFO L78 Accepts]: Start accepts. Automaton has 26295 states and 39224 transitions. Word has length 86 [2021-11-25 18:57:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:57:18,168 INFO L470 AbstractCegarLoop]: Abstraction has 26295 states and 39224 transitions. [2021-11-25 18:57:18,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-25 18:57:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 26295 states and 39224 transitions. [2021-11-25 18:57:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 18:57:18,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:57:18,177 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-25 18:57:18,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:57:18,177 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:57:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:57:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash -379728963, now seen corresponding path program 1 times [2021-11-25 18:57:18,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:57:18,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791258006] [2021-11-25 18:57:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:57:18,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:57:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:57:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:57:18,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:57:18,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791258006] [2021-11-25 18:57:18,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791258006] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:57:18,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506585357] [2021-11-25 18:57:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:57:18,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:57:18,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:57:18,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:57:18,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081aeb52-0036-4a8a-a97e-c749de14b6ee/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:57:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:57:22,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 10531 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:57:22,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:57:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:57:22,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:57:22,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:57:22,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506585357] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:57:22,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [509295685] [2021-11-25 18:57:22,952 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2021-11-25 18:57:22,953 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:57:22,958 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:57:22,965 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:57:22,966 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:59:18,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-25 18:59:33,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-25 19:04:05,363 WARN L227 SmtUtils]: Spent 18.50s on a formula simplification that was a NOOP. DAG size: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:04:23,859 WARN L227 SmtUtils]: Spent 18.46s on a formula simplification that was a NOOP. DAG size: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:04:44,591 WARN L227 SmtUtils]: Spent 20.52s on a formula simplification. DAG size of input: 12846 DAG size of output: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:05:03,331 WARN L227 SmtUtils]: Spent 18.54s on a formula simplification that was a NOOP. DAG size: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:05:21,883 WARN L227 SmtUtils]: Spent 18.52s on a formula simplification that was a NOOP. DAG size: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:05:42,367 WARN L227 SmtUtils]: Spent 20.43s on a formula simplification. DAG size of input: 12846 DAG size of output: 12613 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)