./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V --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 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:19:48,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:19:48,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:19:48,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:19:48,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:19:48,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:19:48,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:19:48,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:19:48,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:19:48,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:19:48,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:19:48,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:19:48,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:19:48,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:19:48,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:19:48,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:19:48,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:19:48,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:19:48,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:19:48,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:19:48,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:19:48,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:19:48,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:19:48,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:19:48,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:19:48,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:19:48,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:19:48,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:19:48,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:19:48,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:19:48,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:19:48,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:19:48,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:19:48,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:19:48,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:19:48,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:19:48,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:19:48,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:19:48,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:19:48,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:19:48,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:19:48,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:19:48,617 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:19:48,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:19:48,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:19:48,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:19:48,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:19:48,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:19:48,620 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:19:48,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:19:48,621 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:19:48,621 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:19:48,621 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:19:48,622 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:19:48,622 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:19:48,622 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:19:48,622 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:19:48,623 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:19:48,623 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:19:48,623 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:19:48,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:19:48,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:19:48,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:19:48,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:19:48,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:19:48,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:19:48,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:19:48,626 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:19:48,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:19:48,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:19:48,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:19:48,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:19:48,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:19:48,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:19:48,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:19:48,629 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:19:48,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:19:48,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:19:48,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:19:48,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:19:48,631 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_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 [2021-11-23 03:19:48,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:19:48,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:19:48,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:19:48,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:19:48,959 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:19:48,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-23 03:19:49,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/data/8df06861f/affceefece934e45a9b578dca0ac4654/FLAG4d5781061 [2021-11-23 03:19:50,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:19:50,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-23 03:19:50,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/data/8df06861f/affceefece934e45a9b578dca0ac4654/FLAG4d5781061 [2021-11-23 03:19:50,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/data/8df06861f/affceefece934e45a9b578dca0ac4654 [2021-11-23 03:19:50,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:19:50,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:19:50,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:50,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:19:50,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:19:50,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:50" (1/1) ... [2021-11-23 03:19:50,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213f8050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:50, skipping insertion in model container [2021-11-23 03:19:50,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:50" (1/1) ... [2021-11-23 03:19:50,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:19:50,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:19:51,611 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-11-23 03:19:51,611 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-11-23 03:19:51,843 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_ac8cae19-158e-491b-b492-bdef5ae3d13f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-11-23 03:19:56,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:56,272 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:19:56,397 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-11-23 03:19:56,397 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-11-23 03:19:56,401 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_ac8cae19-158e-491b-b492-bdef5ae3d13f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-11-23 03:19:57,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:57,775 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:19:57,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57 WrapperNode [2021-11-23 03:19:57,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:57,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:19:57,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:19:57,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:19:57,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:58,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:58,643 INFO L137 Inliner]: procedures = 453, calls = 6871, calls flagged for inlining = 212, calls inlined = 198, statements flattened = 12752 [2021-11-23 03:19:58,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:19:58,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:19:58,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:19:58,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:19:58,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:58,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:58,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:58,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:59,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:59,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:59,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:59,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:19:59,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:19:59,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:19:59,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:19:59,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (1/1) ... [2021-11-23 03:19:59,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:19:59,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:19:59,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:19:59,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8cae19-158e-491b-b492-bdef5ae3d13f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:19:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_poke_via_dsp [2021-11-23 03:19:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_poke_via_dsp [2021-11-23 03:19:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_read [2021-11-23 03:19:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_read [2021-11-23 03:19:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_clfe [2021-11-23 03:19:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_clfe [2021-11-23 03:19:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_src_task_scb [2021-11-23 03:19:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_src_task_scb [2021-11-23 03:19:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_free [2021-11-23 03:19:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_free [2021-11-23 03:19:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 03:19:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 03:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:19:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_hw_constraint_list [2021-11-23 03:19:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_hw_constraint_list [2021-11-23 03:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-23 03:19:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-23 03:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_scb_set_volume [2021-11-23 03:19:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_scb_set_volume [2021-11-23 03:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_pokeBA0 [2021-11-23 03:19:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_pokeBA0 [2021-11-23 03:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close_iec958 [2021-11-23 03:19:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close_iec958 [2021-11-23 03:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_close [2021-11-23 03:19:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_close [2021-11-23 03:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_set_ops [2021-11-23 03:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_set_ops [2021-11-23 03:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 03:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 03:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_parameter [2021-11-23 03:19:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_parameter [2021-11-23 03:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_free_scb [2021-11-23 03:19:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_free_scb [2021-11-23 03:19:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_create_card_entry [2021-11-23 03:19:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_create_card_entry [2021-11-23 03:19:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_free [2021-11-23 03:19:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_free [2021-11-23 03:19:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:19:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:19:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_params [2021-11-23 03:19:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_params [2021-11-23 03:19:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:19:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_write [2021-11-23 03:19:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_write [2021-11-23 03:19:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:19:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:19:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_generic_scb [2021-11-23 03:19:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_generic_scb [2021-11-23 03:19:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:19:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:19:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_free_scb_desc [2021-11-23 03:19:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_free_scb_desc [2021-11-23 03:19:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure params_period_bytes [2021-11-23 03:19:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure params_period_bytes [2021-11-23 03:19:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:19:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_register_scb_desc [2021-11-23 03:19:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_register_scb_desc [2021-11-23 03:19:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_mix_only_scb [2021-11-23 03:19:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_mix_only_scb [2021-11-23 03:19:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_transfer [2021-11-23 03:19:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_transfer [2021-11-23 03:19:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_clear_BA1 [2021-11-23 03:19:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_clear_BA1 [2021-11-23 03:19:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-23 03:19:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-23 03:19:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_add [2021-11-23 03:19:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_add [2021-11-23 03:19:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_free_pages [2021-11-23 03:19:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_free_pages [2021-11-23 03:19:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:19:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_indirect_pointer [2021-11-23 03:19:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_indirect_pointer [2021-11-23 03:19:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_play_sample_rate [2021-11-23 03:19:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_play_sample_rate [2021-11-23 03:19:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:19:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:19:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:19:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_proc_start [2021-11-23 03:19:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_proc_start [2021-11-23 03:19:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:19:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:19:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_preallocate_pages_for_all [2021-11-23 03:19:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_preallocate_pages_for_all [2021-11-23 03:19:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_indirect_pointer [2021-11-23 03:19:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_indirect_pointer [2021-11-23 03:19:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_out [2021-11-23 03:19:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_out [2021-11-23 03:19:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-23 03:19:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-23 03:19:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_write [2021-11-23 03:19:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_write [2021-11-23 03:19:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:19:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:19:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_direct_pointer [2021-11-23 03:19:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_direct_pointer [2021-11-23 03:19:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2021-11-23 03:19:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2021-11-23 03:19:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_cs46xx_remove [2021-11-23 03:19:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_cs46xx_remove [2021-11-23 03:19:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_pcm_link [2021-11-23 03:19:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_pcm_link [2021-11-23 03:19:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure voyetra_setup_eapd_slot [2021-11-23 03:19:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure voyetra_setup_eapd_slot [2021-11-23 03:19:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:19:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:19:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:19:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:19:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:19:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_resume [2021-11-23 03:19:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_resume [2021-11-23 03:19:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_scb [2021-11-23 03:19:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_scb [2021-11-23 03:19:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_trigger [2021-11-23 03:19:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_trigger [2021-11-23 03:19:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_trigger [2021-11-23 03:19:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_trigger [2021-11-23 03:19:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure _cs46xx_playback_open_channel [2021-11-23 03:19:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure _cs46xx_playback_open_channel [2021-11-23 03:19:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:19:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:19:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 03:19:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 03:19:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:19:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:19:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_prepare [2021-11-23 03:19:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_prepare [2021-11-23 03:19:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-11-23 03:19:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-11-23 03:19:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure snd_power_change_state [2021-11-23 03:19:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_power_change_state [2021-11-23 03:19:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_src_unlink [2021-11-23 03:19:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_src_unlink [2021-11-23 03:19:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure clkrun_init [2021-11-23 03:19:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure clkrun_init [2021-11-23 03:19:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:19:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:19:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure bytes_to_frames [2021-11-23 03:19:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure bytes_to_frames [2021-11-23 03:19:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_iec958 [2021-11-23 03:19:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_iec958 [2021-11-23 03:19:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peek [2021-11-23 03:19:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peek [2021-11-23 03:19:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 03:19:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 03:19:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure add_symbol [2021-11-23 03:19:59,615 INFO L138 BoogieDeclarations]: Found implementation of procedure add_symbol [2021-11-23 03:19:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:19:59,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:19:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_open [2021-11-23 03:19:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_open [2021-11-23 03:19:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_hw_stop [2021-11-23 03:19:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_hw_stop [2021-11-23 03:19:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure hw_param_interval_c [2021-11-23 03:19:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_param_interval_c [2021-11-23 03:19:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_capture_sample_rate [2021-11-23 03:19:59,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_capture_sample_rate [2021-11-23 03:19:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit [2021-11-23 03:19:59,617 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit [2021-11-23 03:19:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 03:19:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 03:19:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:19:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:19:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_buffer_bytes [2021-11-23 03:19:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_buffer_bytes [2021-11-23 03:19:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_detect_codec [2021-11-23 03:19:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_detect_codec [2021-11-23 03:19:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:19:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_reset [2021-11-23 03:19:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_reset [2021-11-23 03:19:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:19:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:19:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:19:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_open [2021-11-23 03:19:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_open [2021-11-23 03:19:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_codec_out_scb [2021-11-23 03:19:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_codec_out_scb [2021-11-23 03:19:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_disable_spdif_out [2021-11-23 03:19:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_disable_spdif_out [2021-11-23 03:19:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_clear_sample_buffer [2021-11-23 03:19:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_clear_sample_buffer [2021-11-23 03:19:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_malloc_pages [2021-11-23 03:19:59,623 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_malloc_pages [2021-11-23 03:19:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close [2021-11-23 03:19:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close [2021-11-23 03:19:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure amp_voyetra [2021-11-23 03:19:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure amp_voyetra [2021-11-23 03:19:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure get_segment_desc [2021-11-23 03:19:59,625 INFO L138 BoogieDeclarations]: Found implementation of procedure get_segment_desc [2021-11-23 03:19:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:19:59,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:19:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:19:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:19:59,626 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_task_tree [2021-11-23 03:19:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_task_tree [2021-11-23 03:19:59,626 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_free [2021-11-23 03:19:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_free [2021-11-23 03:19:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:19:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:19:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 03:19:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 03:19:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:19:59,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:19:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure free_module_desc [2021-11-23 03:19:59,628 INFO L138 BoogieDeclarations]: Found implementation of procedure free_module_desc [2021-11-23 03:19:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_new [2021-11-23 03:19:59,628 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_new [2021-11-23 03:19:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_generic_scb [2021-11-23 03:19:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_generic_scb [2021-11-23 03:19:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-23 03:19:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-23 03:19:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_suspend [2021-11-23 03:19:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_suspend [2021-11-23 03:19:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:19:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_alloc_pages [2021-11-23 03:19:59,630 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_alloc_pages [2021-11-23 03:19:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 03:19:59,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 03:19:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_prepare [2021-11-23 03:19:59,631 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_prepare [2021-11-23 03:19:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:19:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_destroy_pcm_channel [2021-11-23 03:19:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_destroy_pcm_channel [2021-11-23 03:19:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_trigger [2021-11-23 03:19:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_trigger [2021-11-23 03:19:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 03:19:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 03:19:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_reset [2021-11-23 03:19:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_reset [2021-11-23 03:19:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:19:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_close [2021-11-23 03:19:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_close [2021-11-23 03:19:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 03:19:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 03:19:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_resume [2021-11-23 03:19:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_resume [2021-11-23 03:19:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_suspend [2021-11-23 03:19:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_suspend [2021-11-23 03:19:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_rear [2021-11-23 03:19:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_rear [2021-11-23 03:19:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 03:19:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 03:19:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_ac97_write [2021-11-23 03:19:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_ac97_write [2021-11-23 03:19:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-23 03:19:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-23 03:19:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_enable_stream_irqs [2021-11-23 03:19:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_enable_stream_irqs [2021-11-23 03:19:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:19:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:19:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_read [2021-11-23 03:19:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_read [2021-11-23 03:19:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2021-11-23 03:19:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2021-11-23 03:19:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_new1 [2021-11-23 03:19:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_new1 [2021-11-23 03:19:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-11-23 03:19:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-11-23 03:19:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_format_width [2021-11-23 03:19:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_format_width [2021-11-23 03:19:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_direct_pointer [2021-11-23 03:19:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_direct_pointer [2021-11-23 03:19:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_update_scb [2021-11-23 03:19:59,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_update_scb [2021-11-23 03:19:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_open [2021-11-23 03:19:59,648 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_open [2021-11-23 03:19:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 03:19:59,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 03:19:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:19:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:19:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:19:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 03:19:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 03:19:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:19:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_destroy [2021-11-23 03:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_destroy [2021-11-23 03:19:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_channel [2021-11-23 03:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_channel [2021-11-23 03:19:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_task_tree [2021-11-23 03:19:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_task_tree [2021-11-23 03:19:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_trigger [2021-11-23 03:19:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_trigger [2021-11-23 03:19:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 03:19:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 03:19:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure frames_to_bytes [2021-11-23 03:19:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure frames_to_bytes [2021-11-23 03:19:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_chip_init [2021-11-23 03:19:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_chip_init [2021-11-23 03:19:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_free_pages [2021-11-23 03:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_free_pages [2021-11-23 03:19:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peekBA0 [2021-11-23 03:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peekBA0 [2021-11-23 03:19:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-23 03:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-23 03:19:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure _wrap_all_bits [2021-11-23 03:19:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure _wrap_all_bits [2021-11-23 03:19:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_poke [2021-11-23 03:19:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_poke [2021-11-23 03:19:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_sample [2021-11-23 03:19:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_sample [2021-11-23 03:19:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open [2021-11-23 03:19:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open [2021-11-23 03:19:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_scb [2021-11-23 03:19:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_scb [2021-11-23 03:19:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_lookup_symbol [2021-11-23 03:19:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_lookup_symbol [2021-11-23 03:19:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_transfer [2021-11-23 03:19:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_transfer [2021-11-23 03:19:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_wait_for_fifo [2021-11-23 03:19:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_wait_for_fifo [2021-11-23 03:19:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_download [2021-11-23 03:19:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_download [2021-11-23 03:19:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_params [2021-11-23 03:19:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_params [2021-11-23 03:19:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_remove_scb [2021-11-23 03:19:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_remove_scb [2021-11-23 03:19:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_hw [2021-11-23 03:19:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_hw [2021-11-23 03:19:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-23 03:19:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-23 03:19:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:19:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:19:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_close [2021-11-23 03:19:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_close [2021-11-23 03:19:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:19:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 03:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 03:19:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:19:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_unlink_scb [2021-11-23 03:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_unlink_scb [2021-11-23 03:19:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_register [2021-11-23 03:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_register [2021-11-23 03:20:01,396 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:20:01,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:20:09,095 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:21:58,982 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:22:03,456 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:22:03,456 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 03:22:03,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:03 BoogieIcfgContainer [2021-11-23 03:22:03,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:22:03,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:22:03,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:22:03,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:22:03,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:19:50" (1/3) ... [2021-11-23 03:22:03,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:03, skipping insertion in model container [2021-11-23 03:22:03,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:57" (2/3) ... [2021-11-23 03:22:03,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:03, skipping insertion in model container [2021-11-23 03:22:03,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:03" (3/3) ... [2021-11-23 03:22:03,477 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-23 03:22:03,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:22:03,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:22:03,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:22:03,585 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 [2021-11-23 03:22:03,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:22:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 3441 states, 2147 states have (on average 1.3893805309734513) internal successors, (2983), 2253 states have internal predecessors, (2983), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) [2021-11-23 03:22:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 03:22:03,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:22:03,723 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] [2021-11-23 03:22:03,723 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:22:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:22:03,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1311268498, now seen corresponding path program 1 times [2021-11-23 03:22:03,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:22:03,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422287949] [2021-11-23 03:22:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:22:03,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:22:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:22:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:22:04,695 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:22:04,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422287949] [2021-11-23 03:22:04,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422287949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:22:04,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:22:04,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:22:04,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082146528] [2021-11-23 03:22:04,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:22:04,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:22:04,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:22:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:22:04,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:22:04,771 INFO L87 Difference]: Start difference. First operand has 3441 states, 2147 states have (on average 1.3893805309734513) internal successors, (2983), 2253 states have internal predecessors, (2983), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:22:07,370 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 [] [2021-11-23 03:22:09,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:12,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:14,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:17,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:19,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:22:23,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:22:26,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:22:27,430 INFO L93 Difference]: Finished difference Result 9466 states and 14609 transitions. [2021-11-23 03:22:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:22:27,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2021-11-23 03:22:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:22:27,514 INFO L225 Difference]: With dead ends: 9466 [2021-11-23 03:22:27,515 INFO L226 Difference]: Without dead ends: 5987 [2021-11-23 03:22:27,555 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 [2021-11-23 03:22:27,558 INFO L933 BasicCegarLoop]: 5734 mSDtfsCounter, 3920 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 10554 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:22:27,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3933 Valid, 10554 Invalid, 791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 781 Invalid, 8 Unknown, 0 Unchecked, 22.0s Time] [2021-11-23 03:22:27,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-11-23 03:22:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 5981. [2021-11-23 03:22:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5981 states, 3752 states have (on average 1.3843283582089552) internal successors, (5194), 3899 states have internal predecessors, (5194), 1936 states have call successors, (1936), 294 states have call predecessors, (1936), 292 states have return successors, (1946), 1917 states have call predecessors, (1946), 1934 states have call successors, (1946) [2021-11-23 03:22:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5981 states to 5981 states and 9076 transitions. [2021-11-23 03:22:28,410 INFO L78 Accepts]: Start accepts. Automaton has 5981 states and 9076 transitions. Word has length 29 [2021-11-23 03:22:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:22:28,411 INFO L470 AbstractCegarLoop]: Abstraction has 5981 states and 9076 transitions. [2021-11-23 03:22:28,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:22:28,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5981 states and 9076 transitions. [2021-11-23 03:22:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 03:22:28,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:22:28,436 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:22:28,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:22:28,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:22:28,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:22:28,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1252808208, now seen corresponding path program 1 times [2021-11-23 03:22:28,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:22:28,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037503176] [2021-11-23 03:22:28,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:22:28,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:22:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:22:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:22:28,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:22:28,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037503176] [2021-11-23 03:22:28,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037503176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:22:28,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:22:28,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:22:28,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816465724] [2021-11-23 03:22:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:22:28,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:22:28,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:22:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:22:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:22:28,928 INFO L87 Difference]: Start difference. First operand 5981 states and 9076 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:22:33,461 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 [] [2021-11-23 03:22:35,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:37,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:40,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:22:42,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:22:47,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:22:50,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:51,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:22:51,774 INFO L93 Difference]: Finished difference Result 17755 states and 26933 transitions. [2021-11-23 03:22:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:22:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2021-11-23 03:22:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:22:51,919 INFO L225 Difference]: With dead ends: 17755 [2021-11-23 03:22:51,920 INFO L226 Difference]: Without dead ends: 11777 [2021-11-23 03:22:51,978 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 [2021-11-23 03:22:51,983 INFO L933 BasicCegarLoop]: 6298 mSDtfsCounter, 4973 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 11039 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:22:51,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4983 Valid, 11039 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 866 Invalid, 7 Unknown, 0 Unchecked, 22.3s Time] [2021-11-23 03:22:52,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11777 states. [2021-11-23 03:22:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11777 to 11768. [2021-11-23 03:22:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11768 states, 7374 states have (on average 1.383102793599132) internal successors, (10199), 7669 states have internal predecessors, (10199), 3810 states have call successors, (3810), 587 states have call predecessors, (3810), 583 states have return successors, (3842), 3770 states have call predecessors, (3842), 3808 states have call successors, (3842) [2021-11-23 03:22:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11768 states to 11768 states and 17851 transitions. [2021-11-23 03:22:52,839 INFO L78 Accepts]: Start accepts. Automaton has 11768 states and 17851 transitions. Word has length 51 [2021-11-23 03:22:52,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:22:52,840 INFO L470 AbstractCegarLoop]: Abstraction has 11768 states and 17851 transitions. [2021-11-23 03:22:52,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:22:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 11768 states and 17851 transitions. [2021-11-23 03:22:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 03:22:52,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:22:52,853 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:22:52,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:22:52,854 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:22:52,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:22:52,854 INFO L85 PathProgramCache]: Analyzing trace with hash -330603709, now seen corresponding path program 1 times [2021-11-23 03:22:52,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:22:52,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417247088] [2021-11-23 03:22:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:22:52,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:22:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:22:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:22:53,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:22:53,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417247088] [2021-11-23 03:22:53,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417247088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:22:53,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:22:53,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:22:53,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343186285] [2021-11-23 03:22:53,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:22:53,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:22:53,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:22:53,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:22:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:22:53,274 INFO L87 Difference]: Start difference. First operand 11768 states and 17851 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:22:57,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:22:59,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:01,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:03,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:23:05,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:11,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:23:13,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:17,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:18,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:18,046 INFO L93 Difference]: Finished difference Result 34997 states and 53046 transitions. [2021-11-23 03:23:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:18,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2021-11-23 03:23:18,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:18,344 INFO L225 Difference]: With dead ends: 34997 [2021-11-23 03:23:18,344 INFO L226 Difference]: Without dead ends: 23232 [2021-11-23 03:23:18,419 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 [2021-11-23 03:23:18,420 INFO L933 BasicCegarLoop]: 6509 mSDtfsCounter, 4998 mSDsluCounter, 5124 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 11256 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:18,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5003 Valid, 11256 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 888 Invalid, 6 Unknown, 0 Unchecked, 24.0s Time] [2021-11-23 03:23:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23232 states. [2021-11-23 03:23:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23232 to 23216. [2021-11-23 03:23:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23216 states, 14544 states have (on average 1.3813256325632564) internal successors, (20090), 15134 states have internal predecessors, (20090), 7510 states have call successors, (7510), 1173 states have call predecessors, (7510), 1161 states have return successors, (7576), 7425 states have call predecessors, (7576), 7508 states have call successors, (7576) [2021-11-23 03:23:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23216 states to 23216 states and 35176 transitions. [2021-11-23 03:23:20,118 INFO L78 Accepts]: Start accepts. Automaton has 23216 states and 35176 transitions. Word has length 52 [2021-11-23 03:23:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:20,119 INFO L470 AbstractCegarLoop]: Abstraction has 23216 states and 35176 transitions. [2021-11-23 03:23:20,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:23:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23216 states and 35176 transitions. [2021-11-23 03:23:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 03:23:20,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:20,128 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:23:20,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:23:20,129 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:20,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:20,129 INFO L85 PathProgramCache]: Analyzing trace with hash -101222876, now seen corresponding path program 1 times [2021-11-23 03:23:20,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:20,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434633561] [2021-11-23 03:23:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:20,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:23:20,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:20,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434633561] [2021-11-23 03:23:20,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434633561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:20,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:20,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:20,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832469514] [2021-11-23 03:23:20,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:20,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:20,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:20,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:20,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:20,541 INFO L87 Difference]: Start difference. First operand 23216 states and 35176 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:23:24,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:23:26,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:28,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:30,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:23:32,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:36,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:38,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:40,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:44,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:23:45,670 INFO L93 Difference]: Finished difference Result 68925 states and 104323 transitions. [2021-11-23 03:23:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:23:45,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-11-23 03:23:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:23:46,120 INFO L225 Difference]: With dead ends: 68925 [2021-11-23 03:23:46,120 INFO L226 Difference]: Without dead ends: 45712 [2021-11-23 03:23:46,250 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 [2021-11-23 03:23:46,254 INFO L933 BasicCegarLoop]: 6789 mSDtfsCounter, 4935 mSDsluCounter, 5117 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 11530 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:23:46,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4942 Valid, 11530 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 911 Invalid, 6 Unknown, 0 Unchecked, 23.9s Time] [2021-11-23 03:23:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45712 states. [2021-11-23 03:23:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45712 to 45688. [2021-11-23 03:23:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45688 states, 28624 states have (on average 1.3796115148127446) internal successors, (39490), 29806 states have internal predecessors, (39490), 14746 states have call successors, (14746), 2337 states have call predecessors, (14746), 2317 states have return successors, (14884), 14577 states have call predecessors, (14884), 14744 states have call successors, (14884) [2021-11-23 03:23:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45688 states to 45688 states and 69120 transitions. [2021-11-23 03:23:49,655 INFO L78 Accepts]: Start accepts. Automaton has 45688 states and 69120 transitions. Word has length 54 [2021-11-23 03:23:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:23:49,656 INFO L470 AbstractCegarLoop]: Abstraction has 45688 states and 69120 transitions. [2021-11-23 03:23:49,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:23:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 45688 states and 69120 transitions. [2021-11-23 03:23:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 03:23:49,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:49,667 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:23:49,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:23:49,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2028237882, now seen corresponding path program 1 times [2021-11-23 03:23:49,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:49,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944751018] [2021-11-23 03:23:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:49,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:23:50,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:50,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944751018] [2021-11-23 03:23:50,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944751018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:23:50,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:23:50,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:23:50,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101632167] [2021-11-23 03:23:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:23:50,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:23:50,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:23:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:23:50,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:23:50,083 INFO L87 Difference]: Start difference. First operand 45688 states and 69120 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:23:52,653 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 [] [2021-11-23 03:23:55,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:57,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:23:59,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:01,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:24:03,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:05,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:11,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:15,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:24:16,943 INFO L93 Difference]: Finished difference Result 135903 states and 205511 transitions. [2021-11-23 03:24:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:24:16,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-11-23 03:24:16,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:24:17,687 INFO L225 Difference]: With dead ends: 135903 [2021-11-23 03:24:17,688 INFO L226 Difference]: Without dead ends: 90218 [2021-11-23 03:24:18,106 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 [2021-11-23 03:24:18,107 INFO L933 BasicCegarLoop]: 6901 mSDtfsCounter, 4956 mSDsluCounter, 5121 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 11648 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:24:18,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4970 Valid, 11648 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 908 Invalid, 8 Unknown, 0 Unchecked, 24.3s Time] [2021-11-23 03:24:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90218 states. [2021-11-23 03:24:23,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90218 to 90188. [2021-11-23 03:24:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90188 states, 56460 states have (on average 1.3781792419411973) internal successors, (77812), 58824 states have internal predecessors, (77812), 29098 states have call successors, (29098), 4673 states have call predecessors, (29098), 4629 states have return successors, (29436), 28755 states have call predecessors, (29436), 29096 states have call successors, (29436) [2021-11-23 03:24:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90188 states to 90188 states and 136346 transitions. [2021-11-23 03:24:24,395 INFO L78 Accepts]: Start accepts. Automaton has 90188 states and 136346 transitions. Word has length 55 [2021-11-23 03:24:24,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:24:24,395 INFO L470 AbstractCegarLoop]: Abstraction has 90188 states and 136346 transitions. [2021-11-23 03:24:24,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:24:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 90188 states and 136346 transitions. [2021-11-23 03:24:24,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:24:24,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:24:24,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:24:24,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:24:24,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:24:24,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:24:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash 543075229, now seen corresponding path program 1 times [2021-11-23 03:24:24,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:24:24,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206727556] [2021-11-23 03:24:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:24:24,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:24:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:24:24,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:24:24,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:24:24,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206727556] [2021-11-23 03:24:24,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206727556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:24:24,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:24:24,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:24:24,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792071493] [2021-11-23 03:24:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:24:24,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:24:24,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:24:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:24:24,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:24:24,808 INFO L87 Difference]: Start difference. First operand 90188 states and 136346 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:24:27,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:30,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:32,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:34,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:24:36,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:42,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:48,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:24:50,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:24:50,669 INFO L93 Difference]: Finished difference Result 268239 states and 405261 transitions. [2021-11-23 03:24:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:24:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2021-11-23 03:24:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:24:51,827 INFO L225 Difference]: With dead ends: 268239 [2021-11-23 03:24:51,827 INFO L226 Difference]: Without dead ends: 178054 [2021-11-23 03:24:52,539 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 [2021-11-23 03:24:52,540 INFO L933 BasicCegarLoop]: 7112 mSDtfsCounter, 4951 mSDsluCounter, 5117 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 11853 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:24:52,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4961 Valid, 11853 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 927 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2021-11-23 03:24:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178054 states. [2021-11-23 03:25:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178054 to 178012. [2021-11-23 03:25:00,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178012 states, 111276 states have (on average 1.3761457996333442) internal successors, (153132), 116008 states have internal predecessors, (153132), 57478 states have call successors, (57478), 9345 states have call predecessors, (57478), 9257 states have return successors, (58236), 56787 states have call predecessors, (58236), 57476 states have call successors, (58236) [2021-11-23 03:25:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178012 states to 178012 states and 268846 transitions. [2021-11-23 03:25:02,424 INFO L78 Accepts]: Start accepts. Automaton has 178012 states and 268846 transitions. Word has length 57 [2021-11-23 03:25:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:25:02,424 INFO L470 AbstractCegarLoop]: Abstraction has 178012 states and 268846 transitions. [2021-11-23 03:25:02,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:25:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 178012 states and 268846 transitions. [2021-11-23 03:25:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 03:25:02,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:25:02,438 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:25:02,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:25:02,438 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:25:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:25:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -559708534, now seen corresponding path program 1 times [2021-11-23 03:25:02,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:25:02,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215458321] [2021-11-23 03:25:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:25:02,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:25:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:25:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 03:25:02,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:25:02,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215458321] [2021-11-23 03:25:02,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215458321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:25:02,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:25:02,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:25:02,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894772800] [2021-11-23 03:25:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:25:02,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:25:02,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:25:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:25:02,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:25:02,761 INFO L87 Difference]: Start difference. First operand 178012 states and 268846 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:25:07,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:25:10,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:25:11,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:25:13,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:25:15,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:25:21,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:25:32,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:25:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:25:36,744 INFO L93 Difference]: Finished difference Result 529503 states and 798993 transitions. [2021-11-23 03:25:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:25:36,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2021-11-23 03:25:36,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.