./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba --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 2c36a9df364179ddc8d27c6acbee2fb959ee84241a663b80989702c8a045d9c9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:51:15,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:51:15,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:51:15,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:51:15,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:51:15,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:51:15,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:51:15,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:51:15,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:51:15,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:51:15,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:51:15,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:51:15,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:51:15,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:51:15,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:51:15,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:51:15,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:51:15,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:51:15,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:51:15,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:51:15,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:51:15,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:51:15,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:51:15,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:51:15,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:51:15,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:51:15,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:51:15,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:51:15,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:51:15,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:51:15,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:51:15,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:51:15,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:51:15,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:51:15,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:51:15,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:51:15,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:51:15,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:51:15,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:51:15,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:51:15,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:51:15,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:51:15,509 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:51:15,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:51:15,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:51:15,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:51:15,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:51:15,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:51:15,522 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:51:15,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:51:15,523 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:51:15,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:51:15,523 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:51:15,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:51:15,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:51:15,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:51:15,524 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:51:15,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:51:15,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:51:15,524 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:51:15,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:51:15,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:51:15,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:51:15,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:51:15,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:51:15,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:51:15,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:51:15,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:51:15,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:51:15,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:51:15,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:51:15,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:51:15,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:51:15,528 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:51:15,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:51:15,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:51:15,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:51:15,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:51:15,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:51:15,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:51:15,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c36a9df364179ddc8d27c6acbee2fb959ee84241a663b80989702c8a045d9c9 [2022-11-22 01:51:15,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:51:15,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:51:15,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:51:15,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:51:15,851 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:51:15,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-22 01:51:18,871 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:51:19,725 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:51:19,726 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-22 01:51:19,793 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/data/5f9f629d1/176bd0198f674ee6a8e415526e804229/FLAG184a39f54 [2022-11-22 01:51:19,817 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/data/5f9f629d1/176bd0198f674ee6a8e415526e804229 [2022-11-22 01:51:19,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:51:19,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:51:19,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:51:19,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:51:19,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:51:19,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:51:19" (1/1) ... [2022-11-22 01:51:19,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4039499a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:19, skipping insertion in model container [2022-11-22 01:51:19,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:51:19" (1/1) ... [2022-11-22 01:51:19,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:51:20,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:51:21,980 WARN L237 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_52664532-8644-4724-89d4-f6f713122875/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[222866,222879] [2022-11-22 01:51:25,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:51:25,260 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:51:25,419 WARN L237 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_52664532-8644-4724-89d4-f6f713122875/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[222866,222879] [2022-11-22 01:51:25,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:51:26,304 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:51:26,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26 WrapperNode [2022-11-22 01:51:26,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:51:26,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:51:26,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:51:26,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:51:26,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:26,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:26,940 INFO L138 Inliner]: procedures = 597, calls = 7272, calls flagged for inlining = 272, calls inlined = 259, statements flattened = 14712 [2022-11-22 01:51:26,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:51:26,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:51:26,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:51:26,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:51:26,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:26,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,517 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:51:27,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:51:27,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:51:27,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:51:27,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (1/1) ... [2022-11-22 01:51:27,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:51:27,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:51:27,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:51:27,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:51:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:51:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:51:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:51:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:51:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 01:51:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-22 01:51:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-22 01:51:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:51:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:51:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:51:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:51:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-22 01:51:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-22 01:51:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:51:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:51:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-22 01:51:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-22 01:51:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-22 01:51:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-22 01:51:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-22 01:51:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-22 01:51:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-22 01:51:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-22 01:51:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-22 01:51:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-22 01:51:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:51:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:51:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:51:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:51:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-22 01:51:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-22 01:51:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 01:51:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 01:51:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:51:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:51:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-22 01:51:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-22 01:51:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:51:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:51:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:51:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:51:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:51:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:51:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-22 01:51:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-22 01:51:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2022-11-22 01:51:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2022-11-22 01:51:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:51:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:51:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-22 01:51:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-22 01:51:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-22 01:51:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-22 01:51:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-22 01:51:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-22 01:51:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-22 01:51:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-22 01:51:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-22 01:51:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-22 01:51:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:51:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:51:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:51:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:51:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-22 01:51:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-22 01:51:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:51:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:51:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:51:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:51:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_14 [2022-11-22 01:51:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_14 [2022-11-22 01:51:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-22 01:51:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-22 01:51:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:51:27,754 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:51:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-22 01:51:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-22 01:51:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-22 01:51:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:51:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:51:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:51:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:51:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:51:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:51:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:51:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:51:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:51:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-22 01:51:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-22 01:51:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-22 01:51:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-22 01:51:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-22 01:51:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-22 01:51:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-22 01:51:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-22 01:51:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-22 01:51:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-22 01:51:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-22 01:51:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-22 01:51:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:51:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:51:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-22 01:51:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-22 01:51:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-22 01:51:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-22 01:51:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 01:51:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-22 01:51:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:51:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:51:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-22 01:51:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-22 01:51:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:51:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:51:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-22 01:51:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-22 01:51:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 01:51:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 01:51:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:51:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-22 01:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-22 01:51:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 01:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 01:51:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:51:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:51:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-22 01:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-22 01:51:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-22 01:51:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-22 01:51:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-22 01:51:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-22 01:51:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:51:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-22 01:51:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-22 01:51:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:51:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:51:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:51:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-22 01:51:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-22 01:51:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-22 01:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-22 01:51:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:51:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:51:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-22 01:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-22 01:51:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-22 01:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-22 01:51:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-22 01:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-22 01:51:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-22 01:51:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-22 01:51:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:51:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:51:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-22 01:51:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-22 01:51:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-22 01:51:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-22 01:51:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:51:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:51:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:51:27,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-22 01:51:27,775 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:51:27,775 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-22 01:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-22 01:51:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-22 01:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-22 01:51:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:51:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-22 01:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-22 01:51:27,776 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-22 01:51:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-22 01:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-22 01:51:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-22 01:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:51:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2022-11-22 01:51:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2022-11-22 01:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:51:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-22 01:51:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-22 01:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-22 01:51:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-22 01:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:51:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2022-11-22 01:51:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2022-11-22 01:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:51:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-22 01:51:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-22 01:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:51:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-22 01:51:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-22 01:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-22 01:51:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-22 01:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:51:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-22 01:51:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-22 01:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:51:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-22 01:51:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-22 01:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:51:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:51:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:51:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-22 01:51:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-22 01:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-22 01:51:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-22 01:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 01:51:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 01:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-22 01:51:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-22 01:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:51:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:51:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2022-11-22 01:51:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2022-11-22 01:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:51:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:51:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-22 01:51:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-22 01:51:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:51:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-22 01:51:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-22 01:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-22 01:51:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-22 01:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:51:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:51:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-22 01:51:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-22 01:51:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:51:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:51:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:51:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:51:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-22 01:51:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-22 01:51:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:51:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:51:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:51:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:51:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-22 01:51:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-22 01:51:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-22 01:51:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-22 01:51:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:51:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:51:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:51:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:51:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-22 01:51:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-22 01:51:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:51:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-22 01:51:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-22 01:51:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:51:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:51:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-22 01:51:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-22 01:51:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-22 01:51:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-22 01:51:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-22 01:51:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-22 01:51:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-22 01:51:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-22 01:51:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-22 01:51:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-22 01:51:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:51:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:51:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:51:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:51:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-11-22 01:51:27,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-11-22 01:51:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-22 01:51:27,796 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-22 01:51:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:51:27,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:51:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:51:27,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:51:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-22 01:51:27,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-22 01:51:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:51:27,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:51:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:51:27,798 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:51:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-22 01:51:27,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-22 01:51:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-22 01:51:27,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-22 01:51:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:51:27,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:51:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-22 01:51:27,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-22 01:51:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:51:27,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:51:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-22 01:51:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-22 01:51:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-22 01:51:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-22 01:51:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:51:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:51:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-22 01:51:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-22 01:51:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:51:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:51:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2022-11-22 01:51:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2022-11-22 01:51:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:51:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:51:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:51:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-22 01:51:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-22 01:51:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:51:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:51:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-22 01:51:27,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-22 01:51:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:51:27,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:51:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2022-11-22 01:51:27,803 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2022-11-22 01:51:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-22 01:51:27,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-22 01:51:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:51:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 01:51:27,804 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 01:51:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-22 01:51:27,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-22 01:51:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-22 01:51:27,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-22 01:51:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-22 01:51:27,805 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-22 01:51:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 01:51:27,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 01:51:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:51:27,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:51:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:51:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-22 01:51:27,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-22 01:51:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-22 01:51:27,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-22 01:51:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:51:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:51:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-22 01:51:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-22 01:51:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:51:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:51:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:51:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:51:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:51:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:51:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-22 01:51:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-22 01:51:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:51:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:51:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-22 01:51:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-22 01:51:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-22 01:51:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-22 01:51:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-22 01:51:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-22 01:51:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-22 01:51:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-22 01:51:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:51:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:51:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:51:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:51:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:51:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:51:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-22 01:51:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-22 01:51:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:51:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:51:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-22 01:51:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-22 01:51:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-22 01:51:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-22 01:51:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:51:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:51:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:51:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:51:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:51:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:51:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-22 01:51:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-22 01:51:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:51:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:51:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-22 01:51:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-22 01:51:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2022-11-22 01:51:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2022-11-22 01:51:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:51:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-22 01:51:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-22 01:51:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:51:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:51:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:51:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:51:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2022-11-22 01:51:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2022-11-22 01:51:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2022-11-22 01:51:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2022-11-22 01:51:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-22 01:51:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-22 01:51:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:51:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:51:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:51:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:51:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-22 01:51:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-22 01:51:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-22 01:51:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-22 01:51:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:51:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:51:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-22 01:51:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-22 01:51:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-22 01:51:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-22 01:51:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:51:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:51:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:51:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:51:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-22 01:51:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-22 01:51:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-22 01:51:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-22 01:51:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-22 01:51:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-22 01:51:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-22 01:51:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-22 01:51:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:51:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:51:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:51:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:51:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-22 01:51:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-22 01:51:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-22 01:51:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-22 01:51:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-22 01:51:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-22 01:51:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-22 01:51:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-22 01:51:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:51:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:51:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-22 01:51:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-22 01:51:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:51:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:51:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-22 01:51:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-22 01:51:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-22 01:51:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-22 01:51:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-22 01:51:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-22 01:51:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-22 01:51:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-22 01:51:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:51:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:51:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:51:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:51:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:51:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-22 01:51:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-22 01:51:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-22 01:51:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-22 01:51:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-22 01:51:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-22 01:51:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 01:51:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 01:51:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-22 01:51:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-22 01:51:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-22 01:51:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-22 01:51:29,469 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:51:29,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:51:29,558 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:51:53,182 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:51:59,867 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:51:59,867 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:51:59,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:51:59 BoogieIcfgContainer [2022-11-22 01:51:59,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:51:59,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:51:59,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:51:59,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:51:59,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:51:19" (1/3) ... [2022-11-22 01:51:59,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f53698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:51:59, skipping insertion in model container [2022-11-22 01:51:59,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:26" (2/3) ... [2022-11-22 01:51:59,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f53698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:51:59, skipping insertion in model container [2022-11-22 01:51:59,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:51:59" (3/3) ... [2022-11-22 01:51:59,885 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-22 01:51:59,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:51:59,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:52:00,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:52:00,036 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b01b565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:52:00,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:52:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 3689 states, 2259 states have (on average 1.3355467020805667) internal successors, (3017), 2333 states have internal predecessors, (3017), 1196 states have call successors, (1196), 233 states have call predecessors, (1196), 232 states have return successors, (1186), 1171 states have call predecessors, (1186), 1186 states have call successors, (1186) [2022-11-22 01:52:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 01:52:00,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:00,067 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-22 01:52:00,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:52:00,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1474565958, now seen corresponding path program 1 times [2022-11-22 01:52:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:00,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447126432] [2022-11-22 01:52:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:00,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-22 01:52:02,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447126432] [2022-11-22 01:52:02,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447126432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:02,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:02,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:52:02,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807626687] [2022-11-22 01:52:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:02,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:52:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:52:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:52:02,067 INFO L87 Difference]: Start difference. First operand has 3689 states, 2259 states have (on average 1.3355467020805667) internal successors, (3017), 2333 states have internal predecessors, (3017), 1196 states have call successors, (1196), 233 states have call predecessors, (1196), 232 states have return successors, (1186), 1171 states have call predecessors, (1186), 1186 states have call successors, (1186) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-22 01:52:04,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:08,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:52:12,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:14,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:16,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:18,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:25,261 INFO L93 Difference]: Finished difference Result 10983 states and 16180 transitions. [2022-11-22 01:52:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:52:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2022-11-22 01:52:25,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:25,348 INFO L225 Difference]: With dead ends: 10983 [2022-11-22 01:52:25,348 INFO L226 Difference]: Without dead ends: 7271 [2022-11-22 01:52:25,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:52:25,385 INFO L413 NwaCegarLoop]: 6227 mSDtfsCounter, 5286 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5290 SdHoareTripleChecker+Valid, 11011 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:25,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5290 Valid, 11011 Invalid, 1269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1256 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2022-11-22 01:52:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2022-11-22 01:52:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7270. [2022-11-22 01:52:25,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7270 states, 4457 states have (on average 1.3269015032533094) internal successors, (5914), 4582 states have internal predecessors, (5914), 2350 states have call successors, (2350), 463 states have call predecessors, (2350), 462 states have return successors, (2353), 2318 states have call predecessors, (2353), 2349 states have call successors, (2353) [2022-11-22 01:52:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7270 states to 7270 states and 10617 transitions. [2022-11-22 01:52:26,016 INFO L78 Accepts]: Start accepts. Automaton has 7270 states and 10617 transitions. Word has length 64 [2022-11-22 01:52:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:26,018 INFO L495 AbstractCegarLoop]: Abstraction has 7270 states and 10617 transitions. [2022-11-22 01:52:26,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-22 01:52:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 7270 states and 10617 transitions. [2022-11-22 01:52:26,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 01:52:26,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:26,034 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-22 01:52:26,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:52:26,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:52:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:26,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1179001706, now seen corresponding path program 1 times [2022-11-22 01:52:26,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:26,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819302055] [2022-11-22 01:52:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-22 01:52:27,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:27,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819302055] [2022-11-22 01:52:27,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819302055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:27,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:27,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:52:27,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459657838] [2022-11-22 01:52:27,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:27,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:52:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:52:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:52:27,550 INFO L87 Difference]: Start difference. First operand 7270 states and 10617 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:52:28,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:30,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:33,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:35,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:37,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:52:40,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:42,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:48,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:50,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:52,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:53,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:55,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:02,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:03,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:08,467 INFO L93 Difference]: Finished difference Result 14508 states and 21287 transitions. [2022-11-22 01:53:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:53:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-11-22 01:53:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:08,560 INFO L225 Difference]: With dead ends: 14508 [2022-11-22 01:53:08,560 INFO L226 Difference]: Without dead ends: 14503 [2022-11-22 01:53:08,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:53:08,571 INFO L413 NwaCegarLoop]: 6198 mSDtfsCounter, 5298 mSDsluCounter, 10970 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 17168 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:08,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 17168 Invalid, 1923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1916 Invalid, 6 Unknown, 0 Unchecked, 40.1s Time] [2022-11-22 01:53:08,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2022-11-22 01:53:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 14494. [2022-11-22 01:53:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14494 states, 8881 states have (on average 1.3269902038058776) internal successors, (11785), 9132 states have internal predecessors, (11785), 4688 states have call successors, (4688), 925 states have call predecessors, (4688), 924 states have return successors, (4796), 4624 states have call predecessors, (4796), 4687 states have call successors, (4796) [2022-11-22 01:53:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14494 states to 14494 states and 21269 transitions. [2022-11-22 01:53:09,325 INFO L78 Accepts]: Start accepts. Automaton has 14494 states and 21269 transitions. Word has length 67 [2022-11-22 01:53:09,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:09,327 INFO L495 AbstractCegarLoop]: Abstraction has 14494 states and 21269 transitions. [2022-11-22 01:53:09,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:53:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14494 states and 21269 transitions. [2022-11-22 01:53:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-22 01:53:09,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:09,349 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 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] [2022-11-22 01:53:09,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:53:09,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:09,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1194866842, now seen corresponding path program 1 times [2022-11-22 01:53:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:09,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170066919] [2022-11-22 01:53:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:09,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:09,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170066919] [2022-11-22 01:53:09,876 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:53:09,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714305937] [2022-11-22 01:53:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:09,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:09,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:09,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:09,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:53:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:13,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 8794 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:53:13,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-22 01:53:13,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:13,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714305937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:13,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:13,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683294789] [2022-11-22 01:53:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:13,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:13,357 INFO L87 Difference]: Start difference. First operand 14494 states and 21269 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:53:15,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:17,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:20,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:24,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:26,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:28,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:35,941 INFO L93 Difference]: Finished difference Result 42565 states and 62484 transitions. [2022-11-22 01:53:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:35,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2022-11-22 01:53:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:36,158 INFO L225 Difference]: With dead ends: 42565 [2022-11-22 01:53:36,159 INFO L226 Difference]: Without dead ends: 28090 [2022-11-22 01:53:36,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:36,286 INFO L413 NwaCegarLoop]: 6582 mSDtfsCounter, 4940 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 40 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4945 SdHoareTripleChecker+Valid, 11224 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:36,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4945 Valid, 11224 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1488 Invalid, 6 Unknown, 0 Unchecked, 21.4s Time] [2022-11-22 01:53:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28090 states. [2022-11-22 01:53:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28090 to 28064. [2022-11-22 01:53:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28064 states, 17219 states have (on average 1.3244671583715664) internal successors, (22806), 17746 states have internal predecessors, (22806), 9036 states have call successors, (9036), 1813 states have call predecessors, (9036), 1808 states have return successors, (9248), 8880 states have call predecessors, (9248), 9035 states have call successors, (9248) [2022-11-22 01:53:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28064 states to 28064 states and 41090 transitions. [2022-11-22 01:53:37,999 INFO L78 Accepts]: Start accepts. Automaton has 28064 states and 41090 transitions. Word has length 153 [2022-11-22 01:53:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:38,000 INFO L495 AbstractCegarLoop]: Abstraction has 28064 states and 41090 transitions. [2022-11-22 01:53:38,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:53:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 28064 states and 41090 transitions. [2022-11-22 01:53:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-22 01:53:38,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:38,020 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 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] [2022-11-22 01:53:38,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:38,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:38,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1520268170, now seen corresponding path program 1 times [2022-11-22 01:53:38,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:38,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704626943] [2022-11-22 01:53:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:38,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:38,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704626943] [2022-11-22 01:53:38,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:53:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790483040] [2022-11-22 01:53:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:38,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:38,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:38,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:53:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:41,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 8898 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:53:41,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-22 01:53:41,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:41,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790483040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:41,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:41,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:41,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987083242] [2022-11-22 01:53:41,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:41,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:41,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:41,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:41,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:41,992 INFO L87 Difference]: Start difference. First operand 28064 states and 41090 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:53:44,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:46,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:49,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:54,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:56,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:00,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:05,838 INFO L93 Difference]: Finished difference Result 83349 states and 121994 transitions. [2022-11-22 01:54:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:05,839 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 164 [2022-11-22 01:54:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:06,410 INFO L225 Difference]: With dead ends: 83349 [2022-11-22 01:54:06,411 INFO L226 Difference]: Without dead ends: 55304 [2022-11-22 01:54:06,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:06,557 INFO L413 NwaCegarLoop]: 6141 mSDtfsCounter, 5126 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 10864 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:06,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 10864 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1301 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2022-11-22 01:54:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55304 states. [2022-11-22 01:54:09,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55304 to 55290. [2022-11-22 01:54:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55290 states, 33985 states have (on average 1.3239958805355303) internal successors, (44996), 35032 states have internal predecessors, (44996), 17720 states have call successors, (17720), 3593 states have call predecessors, (17720), 3584 states have return successors, (18131), 17400 states have call predecessors, (18131), 17719 states have call successors, (18131) [2022-11-22 01:54:09,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55290 states to 55290 states and 80847 transitions. [2022-11-22 01:54:09,826 INFO L78 Accepts]: Start accepts. Automaton has 55290 states and 80847 transitions. Word has length 164 [2022-11-22 01:54:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:09,827 INFO L495 AbstractCegarLoop]: Abstraction has 55290 states and 80847 transitions. [2022-11-22 01:54:09,827 INFO L496 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:54:09,827 INFO L276 IsEmpty]: Start isEmpty. Operand 55290 states and 80847 transitions. [2022-11-22 01:54:09,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-22 01:54:09,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:09,885 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:09,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:54:10,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:10,109 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:10,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1006619907, now seen corresponding path program 1 times [2022-11-22 01:54:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:10,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672697494] [2022-11-22 01:54:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:10,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:10,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:10,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672697494] [2022-11-22 01:54:10,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:54:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750127982] [2022-11-22 01:54:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:10,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:10,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:10,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:10,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:54:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 9205 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:54:14,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-22 01:54:14,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:54:14,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750127982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:14,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:14,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262418525] [2022-11-22 01:54:14,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:14,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:14,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:14,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:14,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:14,220 INFO L87 Difference]: Start difference. First operand 55290 states and 80847 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 01:54:16,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:18,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:22,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:54:26,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:29,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:31,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:39,251 INFO L93 Difference]: Finished difference Result 165531 states and 242041 transitions. [2022-11-22 01:54:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:39,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 223 [2022-11-22 01:54:39,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:40,232 INFO L225 Difference]: With dead ends: 165531 [2022-11-22 01:54:40,232 INFO L226 Difference]: Without dead ends: 110260 [2022-11-22 01:54:40,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:40,615 INFO L413 NwaCegarLoop]: 6794 mSDtfsCounter, 5223 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 11509 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:40,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5228 Valid, 11509 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1416 Invalid, 5 Unknown, 0 Unchecked, 21.4s Time] [2022-11-22 01:54:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110260 states. [2022-11-22 01:54:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110260 to 83020. [2022-11-22 01:54:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83020 states, 51015 states have (on average 1.3237283152014114) internal successors, (67530), 52590 states have internal predecessors, (67530), 26620 states have call successors, (26620), 5397 states have call predecessors, (26620), 5384 states have return successors, (27246), 26136 states have call predecessors, (27246), 26619 states have call successors, (27246) [2022-11-22 01:54:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83020 states to 83020 states and 121396 transitions. [2022-11-22 01:54:45,747 INFO L78 Accepts]: Start accepts. Automaton has 83020 states and 121396 transitions. Word has length 223 [2022-11-22 01:54:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:45,750 INFO L495 AbstractCegarLoop]: Abstraction has 83020 states and 121396 transitions. [2022-11-22 01:54:45,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 01:54:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 83020 states and 121396 transitions. [2022-11-22 01:54:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-22 01:54:45,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:45,855 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:45,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:54:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:46,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1452256679, now seen corresponding path program 1 times [2022-11-22 01:54:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388331136] [2022-11-22 01:54:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:46,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:46,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388331136] [2022-11-22 01:54:46,928 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:54:46,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57574083] [2022-11-22 01:54:46,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:46,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:46,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:46,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:46,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:54:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:50,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 9369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:54:50,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-22 01:54:50,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:54:50,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57574083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:50,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:50,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:50,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712954173] [2022-11-22 01:54:50,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:50,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:50,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:50,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:50,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:50,575 INFO L87 Difference]: Start difference. First operand 83020 states and 121396 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 01:54:52,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:54,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:57,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:01,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:03,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:05,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:11,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:18,616 INFO L93 Difference]: Finished difference Result 221045 states and 322018 transitions. [2022-11-22 01:55:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:18,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 233 [2022-11-22 01:55:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:19,473 INFO L225 Difference]: With dead ends: 221045 [2022-11-22 01:55:19,473 INFO L226 Difference]: Without dead ends: 138044 [2022-11-22 01:55:19,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:19,743 INFO L413 NwaCegarLoop]: 5833 mSDtfsCounter, 3592 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3595 SdHoareTripleChecker+Valid, 10544 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:19,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3595 Valid, 10544 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1310 Invalid, 5 Unknown, 0 Unchecked, 23.3s Time] [2022-11-22 01:55:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138044 states. [2022-11-22 01:55:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138044 to 138035. [2022-11-22 01:55:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138035 states, 85618 states have (on average 1.322070125440912) internal successors, (113193), 88216 states have internal predecessors, (113193), 42944 states have call successors, (42944), 9497 states have call predecessors, (42944), 9472 states have return successors, (44121), 42161 states have call predecessors, (44121), 42943 states have call successors, (44121) [2022-11-22 01:55:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138035 states to 138035 states and 200258 transitions. [2022-11-22 01:55:26,698 INFO L78 Accepts]: Start accepts. Automaton has 138035 states and 200258 transitions. Word has length 233 [2022-11-22 01:55:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:26,699 INFO L495 AbstractCegarLoop]: Abstraction has 138035 states and 200258 transitions. [2022-11-22 01:55:26,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 01:55:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 138035 states and 200258 transitions. [2022-11-22 01:55:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-22 01:55:26,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:26,798 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:26,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:27,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:27,019 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:27,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2034736226, now seen corresponding path program 1 times [2022-11-22 01:55:27,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:27,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463584545] [2022-11-22 01:55:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:27,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:27,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:27,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463584545] [2022-11-22 01:55:27,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:55:27,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749570024] [2022-11-22 01:55:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:27,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:27,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:27,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:55:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:31,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 9239 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:55:31,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-22 01:55:31,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:55:31,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749570024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:31,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:31,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:55:31,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494112989] [2022-11-22 01:55:31,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:31,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:31,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:31,127 INFO L87 Difference]: Start difference. First operand 138035 states and 200258 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, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-22 01:55:33,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:35,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:38,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:43,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:44,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:55,531 INFO L93 Difference]: Finished difference Result 276155 states and 401814 transitions. [2022-11-22 01:55:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:55,535 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, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 237 [2022-11-22 01:55:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:56,370 INFO L225 Difference]: With dead ends: 276155 [2022-11-22 01:55:56,370 INFO L226 Difference]: Without dead ends: 138139 [2022-11-22 01:55:57,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:57,105 INFO L413 NwaCegarLoop]: 4756 mSDtfsCounter, 143 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 9355 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:57,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 9355 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2022-11-22 01:55:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138139 states. [2022-11-22 01:56:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138139 to 138035. [2022-11-22 01:56:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138035 states, 85618 states have (on average 1.321509495666799) internal successors, (113145), 88216 states have internal predecessors, (113145), 42944 states have call successors, (42944), 9497 states have call predecessors, (42944), 9472 states have return successors, (44121), 42161 states have call predecessors, (44121), 42943 states have call successors, (44121) [2022-11-22 01:56:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138035 states to 138035 states and 200210 transitions. [2022-11-22 01:56:03,480 INFO L78 Accepts]: Start accepts. Automaton has 138035 states and 200210 transitions. Word has length 237 [2022-11-22 01:56:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:03,481 INFO L495 AbstractCegarLoop]: Abstraction has 138035 states and 200210 transitions. [2022-11-22 01:56:03,481 INFO L496 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, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-22 01:56:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 138035 states and 200210 transitions. [2022-11-22 01:56:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-22 01:56:03,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:03,577 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:03,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:56:03,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52664532-8644-4724-89d4-f6f713122875/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:56:03,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:56:03,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1375897100, now seen corresponding path program 1 times [2022-11-22 01:56:03,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:03,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232881389] [2022-11-22 01:56:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:03,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-22 01:56:05,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:05,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232881389] [2022-11-22 01:56:05,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232881389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:05,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:05,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:56:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188275746] [2022-11-22 01:56:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:05,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:56:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:56:05,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:56:05,004 INFO L87 Difference]: Start difference. First operand 138035 states and 200210 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:56:07,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:09,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:12,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []