./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P --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 ed05c854ea2052ceef0a8616d174bb96c75960b07bf25a2959b9efa433484633 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:09:38,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:09:38,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:09:38,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:09:38,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:09:38,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:09:38,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:09:38,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:09:38,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:09:38,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:09:38,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:09:38,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:09:38,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:09:38,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:09:38,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:09:38,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:09:38,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:09:38,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:09:38,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:09:38,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:09:38,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:09:38,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:09:38,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:09:38,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:09:38,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:09:38,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:09:38,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:09:38,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:09:38,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:09:38,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:09:38,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:09:38,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:09:38,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:09:38,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:09:38,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:09:38,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:09:38,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:09:38,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:09:38,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:09:38,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:09:38,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:09:38,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:09:38,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:09:38,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:09:38,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:09:38,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:09:38,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:09:38,638 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:09:38,638 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:09:38,638 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:09:38,638 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:09:38,638 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:09:38,638 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:09:38,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:09:38,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:09:38,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:09:38,639 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:09:38,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:09:38,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:09:38,640 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:09:38,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:09:38,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:09:38,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:09:38,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:09:38,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:09:38,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:09:38,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:09:38,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:09:38,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:09:38,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:09:38,643 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:09:38,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:09:38,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:09:38,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:09:38,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:09:38,644 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_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed05c854ea2052ceef0a8616d174bb96c75960b07bf25a2959b9efa433484633 [2021-11-21 00:09:38,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:09:38,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:09:38,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:09:38,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:09:38,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:09:38,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-21 00:09:39,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/data/654a6f87c/6013019c10574da49ec37c19ed9b7e85/FLAG043e135e0 [2021-11-21 00:09:40,158 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:09:40,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-21 00:09:40,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/data/654a6f87c/6013019c10574da49ec37c19ed9b7e85/FLAG043e135e0 [2021-11-21 00:09:40,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/data/654a6f87c/6013019c10574da49ec37c19ed9b7e85 [2021-11-21 00:09:40,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:09:40,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:09:40,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:09:40,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:09:40,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:09:40,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:09:40" (1/1) ... [2021-11-21 00:09:40,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdf9dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:40, skipping insertion in model container [2021-11-21 00:09:40,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:09:40" (1/1) ... [2021-11-21 00:09:40,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:09:40,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:09:46,660 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_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[593537,593550] [2021-11-21 00:09:47,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:09:47,160 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:09:47,866 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_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[593537,593550] [2021-11-21 00:09:47,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:09:48,433 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:09:48,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48 WrapperNode [2021-11-21 00:09:48,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:09:48,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:09:48,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:09:48,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:09:48,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:48,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,209 INFO L137 Inliner]: procedures = 713, calls = 7535, calls flagged for inlining = 297, calls inlined = 287, statements flattened = 15386 [2021-11-21 00:09:49,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:09:49,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:09:49,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:09:49,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:09:49,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:49,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:50,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:09:50,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:09:50,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:09:50,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:09:50,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (1/1) ... [2021-11-21 00:09:50,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:09:50,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:09:50,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:09:50,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:09:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:09:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:09:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 00:09:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 00:09:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 00:09:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:09:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:09:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:09:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:09:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-21 00:09:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-21 00:09:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 00:09:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 00:09:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 00:09:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 00:09:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-21 00:09:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-21 00:09:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:09:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:09:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-21 00:09:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-21 00:09:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-21 00:09:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-21 00:09:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-21 00:09:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-21 00:09:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-21 00:09:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-21 00:09:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:09:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:09:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:09:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:09:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_port_cfg_work [2021-11-21 00:09:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_port_cfg_work [2021-11-21 00:09:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-21 00:09:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-21 00:09:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 00:09:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 00:09:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2021-11-21 00:09:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2021-11-21 00:09:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:09:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:09:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 00:09:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 00:09:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:09:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:09:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 00:09:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 00:09:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:09:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:09:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-21 00:09:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-21 00:09:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2021-11-21 00:09:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2021-11-21 00:09:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:09:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:09:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-21 00:09:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-21 00:09:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-21 00:09:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-21 00:09:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-21 00:09:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-21 00:09:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-21 00:09:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-21 00:09:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-21 00:09:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-21 00:09:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-21 00:09:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-21 00:09:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:09:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:09:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-21 00:09:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-21 00:09:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:09:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:09:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:09:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:09:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-21 00:09:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-21 00:09:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:09:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:09:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-21 00:09:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-21 00:09:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:09:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:09:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:09:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:09:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:09:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:09:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:09:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:09:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:09:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-21 00:09:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-21 00:09:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-21 00:09:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-21 00:09:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-21 00:09:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-21 00:09:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-21 00:09:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-21 00:09:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-21 00:09:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-21 00:09:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-21 00:09:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-21 00:09:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:09:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:09:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-21 00:09:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-21 00:09:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-21 00:09:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-21 00:09:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 00:09:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-21 00:09:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:09:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:09:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-21 00:09:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-21 00:09:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:09:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:09:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-21 00:09:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-21 00:09:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 00:09:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 00:09:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:09:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-21 00:09:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-21 00:09:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 00:09:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 00:09:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:09:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:09:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:09:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:09:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-21 00:09:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-21 00:09:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_idc_work [2021-11-21 00:09:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_idc_work [2021-11-21 00:09:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-21 00:09:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-21 00:09:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-21 00:09:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-21 00:09:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:09:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-21 00:09:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-21 00:09:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-21 00:09:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-21 00:09:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:09:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:09:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:09:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-21 00:09:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-21 00:09:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-21 00:09:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-21 00:09:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2021-11-21 00:09:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2021-11-21 00:09:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:09:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:09:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:09:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:09:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-21 00:09:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-21 00:09:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 00:09:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 00:09:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-21 00:09:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-21 00:09:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 00:09:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 00:09:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 00:09:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 00:09:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-21 00:09:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-21 00:09:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-21 00:09:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-21 00:09:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:09:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:09:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:09:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:09:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:09:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:09:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-21 00:09:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-21 00:09:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ql_asic_reset_work [2021-11-21 00:09:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_asic_reset_work [2021-11-21 00:09:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-21 00:09:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-21 00:09:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-21 00:09:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-21 00:09:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:09:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-21 00:09:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-21 00:09:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-21 00:09:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-21 00:09:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-21 00:09:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-21 00:09:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:09:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:09:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:09:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2021-11-21 00:09:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2021-11-21 00:09:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:09:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-21 00:09:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 00:09:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-21 00:09:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-21 00:09:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:09:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:09:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2021-11-21 00:09:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2021-11-21 00:09:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-11-21 00:09:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-11-21 00:09:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:09:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:09:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-21 00:09:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-21 00:09:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:09:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:09:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-21 00:09:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-21 00:09:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-21 00:09:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-21 00:09:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 00:09:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 00:09:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-21 00:09:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-21 00:09:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 00:09:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 00:09:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-21 00:09:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-21 00:09:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:09:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:09:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 00:09:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 00:09:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-21 00:09:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-21 00:09:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-21 00:09:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-21 00:09:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 00:09:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 00:09:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-21 00:09:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-21 00:09:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:09:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:09:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:09:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:09:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 00:09:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 00:09:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_core_to_log [2021-11-21 00:09:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_core_to_log [2021-11-21 00:09:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2021-11-21 00:09:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2021-11-21 00:09:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:09:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:09:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-21 00:09:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-21 00:09:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:09:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:09:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-21 00:09:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-21 00:09:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:09:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-21 00:09:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:09:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:09:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:09:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 00:09:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 00:09:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 00:09:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 00:09:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:09:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:09:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-21 00:09:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-21 00:09:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-21 00:09:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 00:09:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:09:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-21 00:09:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_idc_ack [2021-11-21 00:09:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_idc_ack [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:09:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-21 00:09:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-21 00:09:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 00:09:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 00:09:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 00:09:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 00:09:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-21 00:09:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-21 00:09:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-21 00:09:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-21 00:09:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-21 00:09:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-21 00:09:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 00:09:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 00:09:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-21 00:09:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-21 00:09:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 00:09:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 00:09:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:09:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:09:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 00:09:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 00:09:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-21 00:09:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-21 00:09:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:09:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:09:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 00:09:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 00:09:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-21 00:09:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-21 00:09:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 00:09:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 00:09:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:09:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:09:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-21 00:09:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-21 00:09:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-21 00:09:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-21 00:09:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 00:09:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 00:09:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-21 00:09:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-21 00:09:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 00:09:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 00:09:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 00:09:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 00:09:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-21 00:09:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-21 00:09:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-21 00:09:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-21 00:09:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 00:09:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 00:09:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-21 00:09:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-21 00:09:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:09:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:09:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 00:09:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 00:09:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2021-11-21 00:09:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:09:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-21 00:09:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:09:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-21 00:09:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-21 00:09:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:09:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:09:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2021-11-21 00:09:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2021-11-21 00:09:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-21 00:09:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-21 00:09:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_6 [2021-11-21 00:09:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_6 [2021-11-21 00:09:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:09:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 00:09:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 00:09:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-21 00:09:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-21 00:09:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-21 00:09:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-21 00:09:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 00:09:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 00:09:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:09:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:09:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:09:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2021-11-21 00:09:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-21 00:09:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-21 00:09:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:09:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-21 00:09:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:09:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:09:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:09:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:09:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-21 00:09:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-21 00:09:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-21 00:09:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-21 00:09:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 00:09:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 00:09:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-21 00:09:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-21 00:09:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-21 00:09:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-21 00:09:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:09:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:09:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:09:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:09:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 00:09:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 00:09:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-21 00:09:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-21 00:09:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 00:09:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 00:09:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-21 00:09:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-21 00:09:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 00:09:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 00:09:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:09:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:09:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:09:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-21 00:09:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:09:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-21 00:09:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2021-11-21 00:09:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:09:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-21 00:09:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-21 00:09:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 00:09:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 00:09:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:09:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:09:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2021-11-21 00:09:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2021-11-21 00:09:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2021-11-21 00:09:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2021-11-21 00:09:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-21 00:09:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-21 00:09:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:09:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-21 00:09:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-21 00:09:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 00:09:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 00:09:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-21 00:09:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-21 00:09:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-21 00:09:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-21 00:09:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:09:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:09:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:09:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:09:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-21 00:09:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-21 00:09:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-21 00:09:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-21 00:09:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-21 00:09:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:09:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 00:09:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_work [2021-11-21 00:09:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_work [2021-11-21 00:09:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-21 00:09:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-21 00:09:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2021-11-21 00:09:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2021-11-21 00:09:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_6 [2021-11-21 00:09:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_6 [2021-11-21 00:09:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-21 00:09:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-21 00:09:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-21 00:09:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-21 00:09:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:09:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-21 00:09:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:09:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-21 00:09:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-21 00:09:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-21 00:09:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-21 00:09:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-21 00:09:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-21 00:09:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-21 00:09:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-21 00:09:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:09:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:09:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:09:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:09:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 00:09:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 00:09:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_reset_work [2021-11-21 00:09:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_reset_work [2021-11-21 00:09:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:09:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-21 00:09:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-21 00:09:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-21 00:09:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-21 00:09:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-21 00:09:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-21 00:09:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 00:09:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 00:09:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-21 00:09:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-21 00:09:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-21 00:09:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-21 00:09:51,766 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:09:51,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:09:51,866 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:10:14,904 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:10:21,117 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:10:21,117 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 00:10:21,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:10:21 BoogieIcfgContainer [2021-11-21 00:10:21,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:10:21,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:10:21,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:10:21,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:10:21,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:09:40" (1/3) ... [2021-11-21 00:10:21,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c6152b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:10:21, skipping insertion in model container [2021-11-21 00:10:21,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:09:48" (2/3) ... [2021-11-21 00:10:21,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c6152b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:10:21, skipping insertion in model container [2021-11-21 00:10:21,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:10:21" (3/3) ... [2021-11-21 00:10:21,136 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-21 00:10:21,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:10:21,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:10:21,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:10:21,212 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 [2021-11-21 00:10:21,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:10:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 4010 states, 2466 states have (on average 1.3454987834549879) internal successors, (3318), 2557 states have internal predecessors, (3318), 1293 states have call successors, (1293), 250 states have call predecessors, (1293), 249 states have return successors, (1277), 1263 states have call predecessors, (1277), 1277 states have call successors, (1277) [2021-11-21 00:10:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-21 00:10:21,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:10:21,326 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:10:21,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:10:21,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:10:21,332 INFO L85 PathProgramCache]: Analyzing trace with hash -419404618, now seen corresponding path program 1 times [2021-11-21 00:10:21,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:10:21,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972805870] [2021-11-21 00:10:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:10:21,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:10:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:10:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-21 00:10:22,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:10:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972805870] [2021-11-21 00:10:22,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972805870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:10:22,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:10:22,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:10:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363409254] [2021-11-21 00:10:22,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:10:22,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:10:22,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:10:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:10:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:10:22,864 INFO L87 Difference]: Start difference. First operand has 4010 states, 2466 states have (on average 1.3454987834549879) internal successors, (3318), 2557 states have internal predecessors, (3318), 1293 states have call successors, (1293), 250 states have call predecessors, (1293), 249 states have return successors, (1277), 1263 states have call predecessors, (1277), 1277 states have call successors, (1277) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:10:25,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:27,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:30,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:10:35,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:36,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:40,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:45,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:10:45,928 INFO L93 Difference]: Finished difference Result 11349 states and 16984 transitions. [2021-11-21 00:10:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:10:45,932 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), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-11-21 00:10:45,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:10:46,038 INFO L225 Difference]: With dead ends: 11349 [2021-11-21 00:10:46,039 INFO L226 Difference]: Without dead ends: 7313 [2021-11-21 00:10:46,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:10:46,085 INFO L933 BasicCegarLoop]: 6580 mSDtfsCounter, 5658 mSDsluCounter, 5194 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 11211 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:10:46,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 11211 Invalid, 1285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1276 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2021-11-21 00:10:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-11-21 00:10:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7307. [2021-11-21 00:10:46,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7307 states, 4514 states have (on average 1.3407177669472752) internal successors, (6052), 4648 states have internal predecessors, (6052), 2332 states have call successors, (2332), 471 states have call predecessors, (2332), 460 states have return successors, (2422), 2274 states have call predecessors, (2422), 2326 states have call successors, (2422) [2021-11-21 00:10:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7307 states to 7307 states and 10806 transitions. [2021-11-21 00:10:46,761 INFO L78 Accepts]: Start accepts. Automaton has 7307 states and 10806 transitions. Word has length 139 [2021-11-21 00:10:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:10:46,762 INFO L470 AbstractCegarLoop]: Abstraction has 7307 states and 10806 transitions. [2021-11-21 00:10:46,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:10:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 7307 states and 10806 transitions. [2021-11-21 00:10:46,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-21 00:10:46,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:10:46,770 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-21 00:10:46,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:10:46,771 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:10:46,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:10:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1437561782, now seen corresponding path program 1 times [2021-11-21 00:10:46,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:10:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761420099] [2021-11-21 00:10:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:10:46,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:10:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:10:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-21 00:10:47,421 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:10:47,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761420099] [2021-11-21 00:10:47,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761420099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:10:47,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:10:47,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:10:47,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803934350] [2021-11-21 00:10:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:10:47,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:10:47,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:10:47,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:10:47,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:10:47,426 INFO L87 Difference]: Start difference. First operand 7307 states and 10806 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-21 00:10:49,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:52,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:53,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:10:57,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:10:59,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:01,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:06,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:11:13,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:11:13,048 INFO L93 Difference]: Finished difference Result 21806 states and 32253 transitions. [2021-11-21 00:11:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:11:13,050 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2021-11-21 00:11:13,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:11:13,196 INFO L225 Difference]: With dead ends: 21806 [2021-11-21 00:11:13,196 INFO L226 Difference]: Without dead ends: 14524 [2021-11-21 00:11:13,256 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 [2021-11-21 00:11:13,260 INFO L933 BasicCegarLoop]: 6518 mSDtfsCounter, 5713 mSDsluCounter, 5812 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5716 SdHoareTripleChecker+Valid, 11677 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:11:13,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5716 Valid, 11677 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1334 Invalid, 5 Unknown, 0 Unchecked, 24.9s Time] [2021-11-21 00:11:13,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14524 states. [2021-11-21 00:11:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14524 to 14519. [2021-11-21 00:11:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14519 states, 8971 states have (on average 1.340541745624791) internal successors, (12026), 9235 states have internal predecessors, (12026), 4627 states have call successors, (4627), 941 states have call predecessors, (4627), 920 states have return successors, (4821), 4516 states have call predecessors, (4821), 4621 states have call successors, (4821) [2021-11-21 00:11:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14519 states to 14519 states and 21474 transitions. [2021-11-21 00:11:14,301 INFO L78 Accepts]: Start accepts. Automaton has 14519 states and 21474 transitions. Word has length 137 [2021-11-21 00:11:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:11:14,305 INFO L470 AbstractCegarLoop]: Abstraction has 14519 states and 21474 transitions. [2021-11-21 00:11:14,306 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-21 00:11:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 14519 states and 21474 transitions. [2021-11-21 00:11:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-21 00:11:14,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:11:14,313 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:11:14,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:11:14,314 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:11:14,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:11:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash -621994014, now seen corresponding path program 1 times [2021-11-21 00:11:14,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:11:14,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87416450] [2021-11-21 00:11:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:11:14,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:11:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:11:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-21 00:11:15,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:11:15,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87416450] [2021-11-21 00:11:15,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87416450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:11:15,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:11:15,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:11:15,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758863248] [2021-11-21 00:11:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:11:15,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:11:15,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:11:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:11:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:11:15,020 INFO L87 Difference]: Start difference. First operand 14519 states and 21474 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:11:17,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:19,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:22,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:11:26,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:29,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:32,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:35,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:11:35,711 INFO L93 Difference]: Finished difference Result 20188 states and 29417 transitions. [2021-11-21 00:11:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:11:35,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2021-11-21 00:11:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:11:35,877 INFO L225 Difference]: With dead ends: 20188 [2021-11-21 00:11:35,878 INFO L226 Difference]: Without dead ends: 20185 [2021-11-21 00:11:35,895 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 [2021-11-21 00:11:35,896 INFO L933 BasicCegarLoop]: 6080 mSDtfsCounter, 5754 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5760 SdHoareTripleChecker+Valid, 7934 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:11:35,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5760 Valid, 7934 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1076 Invalid, 6 Unknown, 0 Unchecked, 20.3s Time] [2021-11-21 00:11:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20185 states. [2021-11-21 00:11:37,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20185 to 20179. [2021-11-21 00:11:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20179 states, 12458 states have (on average 1.3290255257665757) internal successors, (16557), 12824 states have internal predecessors, (16557), 6293 states have call successors, (6293), 1455 states have call predecessors, (6293), 1427 states have return successors, (6558), 6149 states have call predecessors, (6558), 6288 states have call successors, (6558) [2021-11-21 00:11:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20179 states to 20179 states and 29408 transitions. [2021-11-21 00:11:37,381 INFO L78 Accepts]: Start accepts. Automaton has 20179 states and 29408 transitions. Word has length 151 [2021-11-21 00:11:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:11:37,382 INFO L470 AbstractCegarLoop]: Abstraction has 20179 states and 29408 transitions. [2021-11-21 00:11:37,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:11:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 20179 states and 29408 transitions. [2021-11-21 00:11:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-21 00:11:37,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:11:37,394 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:11:37,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:11:37,395 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:11:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:11:37,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2104610025, now seen corresponding path program 1 times [2021-11-21 00:11:37,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:11:37,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649343510] [2021-11-21 00:11:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:11:37,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:11:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:11:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-21 00:11:38,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:11:38,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649343510] [2021-11-21 00:11:38,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649343510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:11:38,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:11:38,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:11:38,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192383305] [2021-11-21 00:11:38,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:11:38,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:11:38,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:11:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:11:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:11:38,047 INFO L87 Difference]: Start difference. First operand 20179 states and 29408 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:11:40,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:42,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:47,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:53,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:11:55,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:11:57,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:11:57,279 INFO L93 Difference]: Finished difference Result 23006 states and 33355 transitions. [2021-11-21 00:11:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:11:57,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2021-11-21 00:11:57,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:11:57,404 INFO L225 Difference]: With dead ends: 23006 [2021-11-21 00:11:57,405 INFO L226 Difference]: Without dead ends: 23003 [2021-11-21 00:11:57,417 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 [2021-11-21 00:11:57,418 INFO L933 BasicCegarLoop]: 5712 mSDtfsCounter, 5753 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5756 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:11:57,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5756 Valid, 7566 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 990 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2021-11-21 00:11:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23003 states. [2021-11-21 00:11:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23003 to 22999. [2021-11-21 00:11:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22999 states, 14196 states have (on average 1.3253733446041138) internal successors, (18815), 14611 states have internal predecessors, (18815), 7123 states have call successors, (7123), 1711 states have call predecessors, (7123), 1679 states have return successors, (7410), 6964 states have call predecessors, (7410), 7119 states have call successors, (7410) [2021-11-21 00:11:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22999 states to 22999 states and 33348 transitions. [2021-11-21 00:11:58,679 INFO L78 Accepts]: Start accepts. Automaton has 22999 states and 33348 transitions. Word has length 152 [2021-11-21 00:11:58,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:11:58,680 INFO L470 AbstractCegarLoop]: Abstraction has 22999 states and 33348 transitions. [2021-11-21 00:11:58,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:11:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 22999 states and 33348 transitions. [2021-11-21 00:11:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-21 00:11:58,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:11:58,687 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:11:58,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:11:58,687 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:11:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:11:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash 314250202, now seen corresponding path program 1 times [2021-11-21 00:11:58,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:11:58,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701756994] [2021-11-21 00:11:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:11:58,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:11:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:11:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-21 00:11:59,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:11:59,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701756994] [2021-11-21 00:11:59,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701756994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:11:59,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:11:59,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:11:59,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735788846] [2021-11-21 00:11:59,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:11:59,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:11:59,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:11:59,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:11:59,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:11:59,651 INFO L87 Difference]: Start difference. First operand 22999 states and 33348 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:12:02,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:05,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:12:08,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:12:14,864 INFO L93 Difference]: Finished difference Result 23007 states and 33354 transitions. [2021-11-21 00:12:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:12:14,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2021-11-21 00:12:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:12:14,995 INFO L225 Difference]: With dead ends: 23007 [2021-11-21 00:12:14,995 INFO L226 Difference]: Without dead ends: 22999 [2021-11-21 00:12:15,006 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 [2021-11-21 00:12:15,007 INFO L933 BasicCegarLoop]: 6077 mSDtfsCounter, 5747 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5753 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:12:15,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5753 Valid, 7931 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1079 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2021-11-21 00:12:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2021-11-21 00:12:16,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 22993. [2021-11-21 00:12:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22993 states, 14191 states have (on average 1.3252765837502642) internal successors, (18807), 14605 states have internal predecessors, (18807), 7122 states have call successors, (7122), 1711 states have call predecessors, (7122), 1679 states have return successors, (7410), 6964 states have call predecessors, (7410), 7119 states have call successors, (7410) [2021-11-21 00:12:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22993 states to 22993 states and 33339 transitions. [2021-11-21 00:12:16,444 INFO L78 Accepts]: Start accepts. Automaton has 22993 states and 33339 transitions. Word has length 154 [2021-11-21 00:12:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:12:16,445 INFO L470 AbstractCegarLoop]: Abstraction has 22993 states and 33339 transitions. [2021-11-21 00:12:16,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:12:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 22993 states and 33339 transitions. [2021-11-21 00:12:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-21 00:12:16,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:12:16,457 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:12:16,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:12:16,458 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:12:16,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:12:16,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1954029844, now seen corresponding path program 1 times [2021-11-21 00:12:16,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:12:16,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389419040] [2021-11-21 00:12:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:12:16,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:12:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:12:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-21 00:12:17,015 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:12:17,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389419040] [2021-11-21 00:12:17,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389419040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:12:17,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:12:17,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:12:17,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849976781] [2021-11-21 00:12:17,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:12:17,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:12:17,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:12:17,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:12:17,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:12:17,019 INFO L87 Difference]: Start difference. First operand 22993 states and 33339 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:12:18,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:20,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:22,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:25,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:12:29,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:30,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:33,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:12:39,340 INFO L93 Difference]: Finished difference Result 24076 states and 34849 transitions. [2021-11-21 00:12:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:12:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 171 [2021-11-21 00:12:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:12:39,462 INFO L225 Difference]: With dead ends: 24076 [2021-11-21 00:12:39,462 INFO L226 Difference]: Without dead ends: 24073 [2021-11-21 00:12:39,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:12:39,478 INFO L933 BasicCegarLoop]: 5381 mSDtfsCounter, 579 mSDsluCounter, 5564 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 10323 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:12:39,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 10323 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 5 Unknown, 0 Unchecked, 21.7s Time] [2021-11-21 00:12:39,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24073 states. [2021-11-21 00:12:40,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24073 to 24073. [2021-11-21 00:12:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24073 states, 14848 states have (on average 1.3277882543103448) internal successors, (19715), 15271 states have internal predecessors, (19715), 7419 states have call successors, (7419), 1837 states have call predecessors, (7419), 1805 states have return successors, (7708), 7257 states have call predecessors, (7708), 7417 states have call successors, (7708) [2021-11-21 00:12:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24073 states to 24073 states and 34842 transitions. [2021-11-21 00:12:40,869 INFO L78 Accepts]: Start accepts. Automaton has 24073 states and 34842 transitions. Word has length 171 [2021-11-21 00:12:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:12:40,870 INFO L470 AbstractCegarLoop]: Abstraction has 24073 states and 34842 transitions. [2021-11-21 00:12:40,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:12:40,871 INFO L276 IsEmpty]: Start isEmpty. Operand 24073 states and 34842 transitions. [2021-11-21 00:12:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-21 00:12:40,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:12:40,886 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:12:40,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:12:40,887 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:12:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:12:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash -680590771, now seen corresponding path program 1 times [2021-11-21 00:12:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:12:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295439722] [2021-11-21 00:12:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:12:40,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:12:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:12:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-21 00:12:41,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:12:41,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295439722] [2021-11-21 00:12:41,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295439722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:12:41,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:12:41,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:12:41,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034793637] [2021-11-21 00:12:41,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:12:41,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:12:41,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:12:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:12:41,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:12:41,445 INFO L87 Difference]: Start difference. First operand 24073 states and 34842 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:12:43,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:46,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:49,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:12:54,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:12:59,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:01,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:04,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:13:06,434 INFO L93 Difference]: Finished difference Result 61799 states and 89785 transitions. [2021-11-21 00:13:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:13:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 171 [2021-11-21 00:13:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:13:06,666 INFO L225 Difference]: With dead ends: 61799 [2021-11-21 00:13:06,667 INFO L226 Difference]: Without dead ends: 37751 [2021-11-21 00:13:06,824 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 [2021-11-21 00:13:06,826 INFO L933 BasicCegarLoop]: 6950 mSDtfsCounter, 5256 mSDsluCounter, 5766 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5260 SdHoareTripleChecker+Valid, 12070 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:13:06,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5260 Valid, 12070 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1488 Invalid, 5 Unknown, 0 Unchecked, 23.5s Time] [2021-11-21 00:13:06,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37751 states. [2021-11-21 00:13:08,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37751 to 37739. [2021-11-21 00:13:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37739 states, 23322 states have (on average 1.333504845210531) internal successors, (31100), 23981 states have internal predecessors, (31100), 11707 states have call successors, (11707), 2761 states have call predecessors, (11707), 2709 states have return successors, (12158), 11441 states have call predecessors, (12158), 11705 states have call successors, (12158) [2021-11-21 00:13:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37739 states to 37739 states and 54965 transitions. [2021-11-21 00:13:09,004 INFO L78 Accepts]: Start accepts. Automaton has 37739 states and 54965 transitions. Word has length 171 [2021-11-21 00:13:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:13:09,005 INFO L470 AbstractCegarLoop]: Abstraction has 37739 states and 54965 transitions. [2021-11-21 00:13:09,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:13:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 37739 states and 54965 transitions. [2021-11-21 00:13:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-21 00:13:09,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:13:09,036 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:13:09,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:13:09,036 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:13:09,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:13:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1067478600, now seen corresponding path program 1 times [2021-11-21 00:13:09,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:13:09,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445197981] [2021-11-21 00:13:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:13:09,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:13:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:13:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-21 00:13:09,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:13:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445197981] [2021-11-21 00:13:09,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445197981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:13:09,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:13:09,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:13:09,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177301592] [2021-11-21 00:13:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:13:09,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:13:09,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:13:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:13:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:13:09,871 INFO L87 Difference]: Start difference. First operand 37739 states and 54965 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:13:12,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:16,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:13:19,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:21,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:25,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:31,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:13:35,807 INFO L93 Difference]: Finished difference Result 68065 states and 98940 transitions. [2021-11-21 00:13:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:13:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 200 [2021-11-21 00:13:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:13:35,981 INFO L225 Difference]: With dead ends: 68065 [2021-11-21 00:13:35,981 INFO L226 Difference]: Without dead ends: 30351 [2021-11-21 00:13:36,353 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 [2021-11-21 00:13:36,355 INFO L933 BasicCegarLoop]: 9817 mSDtfsCounter, 5753 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5756 SdHoareTripleChecker+Valid, 14559 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:13:36,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5756 Valid, 14559 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1860 Invalid, 4 Unknown, 0 Unchecked, 24.4s Time] [2021-11-21 00:13:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30351 states. [2021-11-21 00:13:37,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30351 to 30316. [2021-11-21 00:13:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30316 states, 18738 states have (on average 1.3313053687693457) internal successors, (24946), 19264 states have internal predecessors, (24946), 9348 states have call successors, (9348), 2272 states have call predecessors, (9348), 2229 states have return successors, (9679), 9136 states have call predecessors, (9679), 9346 states have call successors, (9679) [2021-11-21 00:13:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30316 states to 30316 states and 43973 transitions. [2021-11-21 00:13:38,118 INFO L78 Accepts]: Start accepts. Automaton has 30316 states and 43973 transitions. Word has length 200 [2021-11-21 00:13:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:13:38,119 INFO L470 AbstractCegarLoop]: Abstraction has 30316 states and 43973 transitions. [2021-11-21 00:13:38,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:13:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 30316 states and 43973 transitions. [2021-11-21 00:13:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-21 00:13:38,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:13:38,163 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:13:38,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:13:38,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:13:38,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:13:38,164 INFO L85 PathProgramCache]: Analyzing trace with hash -286065062, now seen corresponding path program 1 times [2021-11-21 00:13:38,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:13:38,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660228814] [2021-11-21 00:13:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:13:38,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:13:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:13:38,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:13:38,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660228814] [2021-11-21 00:13:38,660 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-21 00:13:38,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374477530] [2021-11-21 00:13:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:13:38,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:13:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:13:38,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:13:38,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:13:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:13:41,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 9304 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:13:41,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:13:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-21 00:13:42,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:13:42,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374477530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:13:42,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:13:42,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:13:42,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568267105] [2021-11-21 00:13:42,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:13:42,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:13:42,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:13:42,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:13:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:13:42,341 INFO L87 Difference]: Start difference. First operand 30316 states and 43973 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:13:44,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:47,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:13:50,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:52,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:53,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:02,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:07,290 INFO L93 Difference]: Finished difference Result 73116 states and 106393 transitions. [2021-11-21 00:14:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:14:07,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 219 [2021-11-21 00:14:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:07,485 INFO L225 Difference]: With dead ends: 73116 [2021-11-21 00:14:07,486 INFO L226 Difference]: Without dead ends: 42842 [2021-11-21 00:14:07,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:07,596 INFO L933 BasicCegarLoop]: 7147 mSDtfsCounter, 5409 mSDsluCounter, 5695 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 40 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 12194 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:07,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5414 Valid, 12194 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1610 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2021-11-21 00:14:07,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42842 states. [2021-11-21 00:14:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42842 to 42825. [2021-11-21 00:14:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42825 states, 26525 states have (on average 1.33315739868049) internal successors, (35362), 27308 states have internal predecessors, (35362), 13223 states have call successors, (13223), 3141 states have call predecessors, (13223), 3076 states have return successors, (13680), 12896 states have call predecessors, (13680), 13221 states have call successors, (13680) [2021-11-21 00:14:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42825 states to 42825 states and 62265 transitions. [2021-11-21 00:14:09,955 INFO L78 Accepts]: Start accepts. Automaton has 42825 states and 62265 transitions. Word has length 219 [2021-11-21 00:14:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:09,956 INFO L470 AbstractCegarLoop]: Abstraction has 42825 states and 62265 transitions. [2021-11-21 00:14:09,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:14:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 42825 states and 62265 transitions. [2021-11-21 00:14:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-21 00:14:09,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:09,974 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:10,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:10,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:10,447 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:10,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2083021327, now seen corresponding path program 1 times [2021-11-21 00:14:10,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:10,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043379035] [2021-11-21 00:14:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:10,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:10,923 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:10,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043379035] [2021-11-21 00:14:10,923 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-21 00:14:10,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168164165] [2021-11-21 00:14:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:10,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:10,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:10,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:14:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:13,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 9432 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:14:13,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-11-21 00:14:14,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:14:14,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168164165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:14,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:14,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:14:14,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564022783] [2021-11-21 00:14:14,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:14,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:14:14,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:14,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:14:14,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:14,201 INFO L87 Difference]: Start difference. First operand 42825 states and 62265 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 00:14:16,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:19,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:21,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:14:27,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:29,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:37,274 INFO L93 Difference]: Finished difference Result 114970 states and 167427 transitions. [2021-11-21 00:14:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:14:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 243 [2021-11-21 00:14:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:37,788 INFO L225 Difference]: With dead ends: 114970 [2021-11-21 00:14:37,789 INFO L226 Difference]: Without dead ends: 72187 [2021-11-21 00:14:37,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:37,953 INFO L933 BasicCegarLoop]: 7026 mSDtfsCounter, 5552 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5557 SdHoareTripleChecker+Valid, 12156 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:37,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5557 Valid, 12156 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1500 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2021-11-21 00:14:38,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72187 states. [2021-11-21 00:14:41,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72187 to 72172. [2021-11-21 00:14:41,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72172 states, 44789 states have (on average 1.3347696979168993) internal successors, (59783), 46119 states have internal predecessors, (59783), 22265 states have call successors, (22265), 5228 states have call predecessors, (22265), 5117 states have return successors, (23063), 21692 states have call predecessors, (23063), 22263 states have call successors, (23063) [2021-11-21 00:14:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72172 states to 72172 states and 105111 transitions. [2021-11-21 00:14:42,084 INFO L78 Accepts]: Start accepts. Automaton has 72172 states and 105111 transitions. Word has length 243 [2021-11-21 00:14:42,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:42,085 INFO L470 AbstractCegarLoop]: Abstraction has 72172 states and 105111 transitions. [2021-11-21 00:14:42,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 00:14:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 72172 states and 105111 transitions. [2021-11-21 00:14:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-21 00:14:42,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:42,115 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:42,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:42,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:42,330 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:42,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash -158504468, now seen corresponding path program 1 times [2021-11-21 00:14:42,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:42,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507018580] [2021-11-21 00:14:42,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:42,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2021-11-21 00:14:42,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:42,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507018580] [2021-11-21 00:14:42,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507018580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:42,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:42,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:14:42,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23327675] [2021-11-21 00:14:42,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:42,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:14:42,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:42,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:14:42,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:42,938 INFO L87 Difference]: Start difference. First operand 72172 states and 105111 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:14:45,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:48,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:51,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:14:56,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:14:59,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:03,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:15:12,367 INFO L93 Difference]: Finished difference Result 158380 states and 231349 transitions. [2021-11-21 00:15:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:15:12,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 278 [2021-11-21 00:15:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:15:13,251 INFO L225 Difference]: With dead ends: 158380 [2021-11-21 00:15:13,252 INFO L226 Difference]: Without dead ends: 98301 [2021-11-21 00:15:13,454 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 [2021-11-21 00:15:13,455 INFO L933 BasicCegarLoop]: 9588 mSDtfsCounter, 5586 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 21 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 14485 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:15:13,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5590 Valid, 14485 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1881 Invalid, 6 Unknown, 0 Unchecked, 25.2s Time] [2021-11-21 00:15:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98301 states. [2021-11-21 00:15:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98301 to 98292. [2021-11-21 00:15:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98292 states, 61131 states have (on average 1.3365559208912008) internal successors, (81705), 62937 states have internal predecessors, (81705), 30298 states have call successors, (30298), 7013 states have call predecessors, (30298), 6862 states have return successors, (31380), 29521 states have call predecessors, (31380), 30296 states have call successors, (31380) [2021-11-21 00:15:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98292 states to 98292 states and 143383 transitions. [2021-11-21 00:15:18,644 INFO L78 Accepts]: Start accepts. Automaton has 98292 states and 143383 transitions. Word has length 278 [2021-11-21 00:15:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:15:18,645 INFO L470 AbstractCegarLoop]: Abstraction has 98292 states and 143383 transitions. [2021-11-21 00:15:18,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:15:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 98292 states and 143383 transitions. [2021-11-21 00:15:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-21 00:15:18,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:15:18,684 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:15:18,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:15:18,684 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:15:18,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:15:18,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1566424905, now seen corresponding path program 1 times [2021-11-21 00:15:18,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:15:18,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795610736] [2021-11-21 00:15:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:18,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:15:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:15:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2021-11-21 00:15:19,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:15:19,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795610736] [2021-11-21 00:15:19,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795610736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:15:19,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:15:19,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:15:19,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228128936] [2021-11-21 00:15:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:15:19,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:15:19,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:15:19,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:15:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:15:19,956 INFO L87 Difference]: Start difference. First operand 98292 states and 143383 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:15:22,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:24,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:27,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:15:33,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:36,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:39,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:41,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:43,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:15:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:15:49,944 INFO L93 Difference]: Finished difference Result 136368 states and 199863 transitions. [2021-11-21 00:15:49,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:15:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 304 [2021-11-21 00:15:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:15:50,940 INFO L225 Difference]: With dead ends: 136368 [2021-11-21 00:15:50,940 INFO L226 Difference]: Without dead ends: 136365 [2021-11-21 00:15:51,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:15:51,005 INFO L933 BasicCegarLoop]: 6685 mSDtfsCounter, 5541 mSDsluCounter, 5140 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5541 SdHoareTripleChecker+Valid, 11264 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:15:51,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5541 Valid, 11264 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1309 Invalid, 6 Unknown, 0 Unchecked, 25.9s Time] [2021-11-21 00:15:51,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136365 states. [2021-11-21 00:15:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136365 to 135991. [2021-11-21 00:15:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135991 states, 84783 states have (on average 1.3399148414186806) internal successors, (113602), 87308 states have internal predecessors, (113602), 41840 states have call successors, (41840), 9613 states have call predecessors, (41840), 9367 states have return successors, (43854), 40633 states have call predecessors, (43854), 41838 states have call successors, (43854) [2021-11-21 00:15:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135991 states to 135991 states and 199296 transitions. [2021-11-21 00:15:59,288 INFO L78 Accepts]: Start accepts. Automaton has 135991 states and 199296 transitions. Word has length 304 [2021-11-21 00:15:59,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:15:59,293 INFO L470 AbstractCegarLoop]: Abstraction has 135991 states and 199296 transitions. [2021-11-21 00:15:59,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:15:59,293 INFO L276 IsEmpty]: Start isEmpty. Operand 135991 states and 199296 transitions. [2021-11-21 00:15:59,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-21 00:15:59,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:15:59,373 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:15:59,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:15:59,374 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:15:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:15:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1470073690, now seen corresponding path program 1 times [2021-11-21 00:15:59,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:15:59,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253364283] [2021-11-21 00:15:59,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:59,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:15:59,685 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:15:59,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675817847] [2021-11-21 00:15:59,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:59,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:15:59,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:15:59,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:15:59,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b0a5c6-e53d-45c6-8ba7-40b962b54bd5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:16:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:02,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 10027 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:16:03,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:16:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2021-11-21 00:16:03,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:16:03,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253364283] [2021-11-21 00:16:03,882 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:16:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675817847] [2021-11-21 00:16:03,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675817847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:03,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:03,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:16:03,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685590369] [2021-11-21 00:16:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:03,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:03,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:03,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:03,885 INFO L87 Difference]: Start difference. First operand 135991 states and 199296 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-21 00:16:06,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:09,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:12,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:16:14,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:18,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:20,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:22,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:27,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []