./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dbf26404e70c3394fd0367244976693545d30c1a748b5c7360fa4057d4decd8b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:32:43,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:32:43,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:32:43,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:32:43,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:32:43,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:32:43,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:32:43,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:32:43,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:32:43,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:32:43,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:32:43,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:32:43,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:32:43,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:32:43,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:32:43,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:32:43,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:32:43,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:32:43,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:32:43,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:32:43,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:32:43,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:32:43,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:32:43,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:32:43,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:32:43,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:32:43,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:32:43,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:32:43,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:32:43,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:32:43,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:32:43,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:32:43,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:32:43,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:32:43,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:32:43,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:32:43,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:32:43,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:32:43,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:32:43,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:32:43,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:32:43,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:32:43,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:32:43,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:32:43,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:32:43,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:32:43,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:32:43,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:32:43,360 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:32:43,361 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:32:43,361 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:32:43,361 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:32:43,361 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:32:43,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:32:43,362 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:32:43,362 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:32:43,362 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:32:43,363 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:32:43,363 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:32:43,363 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:32:43,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:32:43,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:32:43,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:32:43,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:32:43,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:32:43,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:32:43,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:32:43,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:32:43,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:32:43,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:32:43,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:32:43,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:43,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:32:43,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:32:43,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:32:43,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:32:43,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:32:43,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:32:43,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:32:43,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:32:43,369 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf26404e70c3394fd0367244976693545d30c1a748b5c7360fa4057d4decd8b [2021-11-23 03:32:43,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:32:43,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:32:43,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:32:43,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:32:43,734 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:32:43,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-23 03:32:43,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/data/166fac77a/4b4d217dbc634460a151139bf54533af/FLAG8fc2fcda7 [2021-11-23 03:32:45,221 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:32:45,221 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-23 03:32:45,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/data/166fac77a/4b4d217dbc634460a151139bf54533af/FLAG8fc2fcda7 [2021-11-23 03:32:45,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/data/166fac77a/4b4d217dbc634460a151139bf54533af [2021-11-23 03:32:45,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:32:45,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:32:45,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:45,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:32:45,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:32:45,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:45" (1/1) ... [2021-11-23 03:32:45,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e2467b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:45, skipping insertion in model container [2021-11-23 03:32:45,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:45" (1/1) ... [2021-11-23 03:32:45,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:32:46,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:32:50,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i[393184,393197] [2021-11-23 03:32:50,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:50,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:32:51,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i[393184,393197] [2021-11-23 03:32:51,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:51,657 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:32:51,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51 WrapperNode [2021-11-23 03:32:51,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:51,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:51,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:32:51,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:32:51,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:51,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,156 INFO L137 Inliner]: procedures = 473, calls = 2763, calls flagged for inlining = 210, calls inlined = 196, statements flattened = 6970 [2021-11-23 03:32:52,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:52,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:32:52,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:32:52,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:32:52,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:32:52,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:32:52,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:32:52,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:32:52,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (1/1) ... [2021-11-23 03:32:52,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:52,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:52,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:32:52,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:32:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2021-11-23 03:32:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2021-11-23 03:32:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2021-11-23 03:32:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2021-11-23 03:32:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_port_list_get [2021-11-23 03:32:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_port_list_get [2021-11-23 03:32:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:32:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:32:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure __team_change_mode [2021-11-23 03:32:52,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_change_mode [2021-11-23 03:32:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2021-11-23 03:32:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2021-11-23 03:32:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 03:32:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 03:32:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:32:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:32:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure team_init [2021-11-23 03:32:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure team_init [2021-11-23 03:32:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure team_del_slave [2021-11-23 03:32:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure team_del_slave [2021-11-23 03:32:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_if_positive [2021-11-23 03:32:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_if_positive [2021-11-23 03:32:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-23 03:32:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-23 03:32:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_set [2021-11-23 03:32:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_set [2021-11-23 03:32:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_setup [2021-11-23 03:32:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_setup [2021-11-23 03:32:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-23 03:32:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-23 03:32:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 03:32:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 03:32:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-23 03:32:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-23 03:32:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-11-23 03:32:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-11-23 03:32:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_enabled_check [2021-11-23 03:32:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_enabled_check [2021-11-23 03:32:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure team_queue_override_fini [2021-11-23 03:32:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure team_queue_override_fini [2021-11-23 03:32:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_cleanup [2021-11-23 03:32:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_cleanup [2021-11-23 03:32:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_mtu [2021-11-23 03:32:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_mtu [2021-11-23 03:32:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_dump [2021-11-23 03:32:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_dump [2021-11-23 03:32:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 03:32:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 03:32:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_get_rtnl [2021-11-23 03:32:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_get_rtnl [2021-11-23 03:32:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-23 03:32:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-23 03:32:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_mac_address [2021-11-23 03:32:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_mac_address [2021-11-23 03:32:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_add [2021-11-23 03:32:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_add [2021-11-23 03:32:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_unicast [2021-11-23 03:32:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_unicast [2021-11-23 03:32:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_tx_queues [2021-11-23 03:32:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_tx_queues [2021-11-23 03:32:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_end [2021-11-23 03:32:52,911 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_end [2021-11-23 03:32:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure team_poll_controller [2021-11-23 03:32:52,911 INFO L138 BoogieDeclarations]: Found implementation of procedure team_poll_controller [2021-11-23 03:32:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:32:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure team_add_slave [2021-11-23 03:32:52,911 INFO L138 BoogieDeclarations]: Found implementation of procedure team_add_slave [2021-11-23 03:32:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_kill_vid [2021-11-23 03:32:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_kill_vid [2021-11-23 03:32:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_option [2021-11-23 03:32:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_option [2021-11-23 03:32:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-23 03:32:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-23 03:32:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_unregister [2021-11-23 03:32:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_unregister [2021-11-23 03:32:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_put [2021-11-23 03:32:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_put [2021-11-23 03:32:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 03:32:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 03:32:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_trylock [2021-11-23 03:32:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_trylock [2021-11-23 03:32:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:32:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:32:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_getlink [2021-11-23 03:32:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_getlink [2021-11-23 03:32:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure team_refresh_port_linkup [2021-11-23 03:32:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure team_refresh_port_linkup [2021-11-23 03:32:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_new [2021-11-23 03:32:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_new [2021-11-23 03:32:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_carrier [2021-11-23 03:32:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_carrier [2021-11-23 03:32:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:32:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:32:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_setlink [2021-11-23 03:32:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_setlink [2021-11-23 03:32:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers [2021-11-23 03:32:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers [2021-11-23 03:32:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:32:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __team_port_change_send [2021-11-23 03:32:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_port_change_send [2021-11-23 03:32:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_end [2021-11-23 03:32:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_end [2021-11-23 03:32:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure team_fix_features [2021-11-23 03:32:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure team_fix_features [2021-11-23 03:32:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del_rcu [2021-11-23 03:32:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del_rcu [2021-11-23 03:32:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:32:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure __team_netpoll_cleanup [2021-11-23 03:32:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_netpoll_cleanup [2021-11-23 03:32:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u8 [2021-11-23 03:32:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u8 [2021-11-23 03:32:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:32:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure team_select_queue [2021-11-23 03:32:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure team_select_queue [2021-11-23 03:32:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vid_del [2021-11-23 03:32:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vid_del [2021-11-23 03:32:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:32:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:32:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_option_set [2021-11-23 03:32:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_option_set [2021-11-23 03:32:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure __find_mode [2021-11-23 03:32:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_mode [2021-11-23 03:32:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mode [2021-11-23 03:32:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mode [2021-11-23 03:32:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-23 03:32:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-23 03:32:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure team_ethtool_get_drvinfo [2021-11-23 03:32:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure team_ethtool_get_drvinfo [2021-11-23 03:32:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-23 03:32:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-23 03:32:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 03:32:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 03:32:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_put [2021-11-23 03:32:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_put [2021-11-23 03:32:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_rx_mode [2021-11-23 03:32:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_rx_mode [2021-11-23 03:32:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure team_setup [2021-11-23 03:32:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure team_setup [2021-11-23 03:32:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_index_hash [2021-11-23 03:32:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_index_hash [2021-11-23 03:32:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure genl_info_net [2021-11-23 03:32:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure genl_info_net [2021-11-23 03:32:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-23 03:32:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-23 03:32:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-23 03:32:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-23 03:32:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 03:32:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 03:32:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:32:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 03:32:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 03:32:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:32:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers_fini [2021-11-23 03:32:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers_fini [2021-11-23 03:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 03:32:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 03:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_port [2021-11-23 03:32:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_port [2021-11-23 03:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:32:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:32:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:32:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2021-11-23 03:32:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2021-11-23 03:32:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:32:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:32:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable [2021-11-23 03:32:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable [2021-11-23 03:32:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_set [2021-11-23 03:32:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_set [2021-11-23 03:32:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure team_adjust_ops [2021-11-23 03:32:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure team_adjust_ops [2021-11-23 03:32:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_rx_handler_unregister [2021-11-23 03:32:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_rx_handler_unregister [2021-11-23 03:32:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 03:32:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 03:32:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mtu [2021-11-23 03:32:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mtu [2021-11-23 03:32:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:32:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_del [2021-11-23 03:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_del [2021-11-23 03:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-23 03:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-23 03:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vids_del_by_dev [2021-11-23 03:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vids_del_by_dev [2021-11-23 03:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin [2021-11-23 03:32:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin [2021-11-23 03:32:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-23 03:32:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-23 03:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-23 03:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-23 03:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin_fini [2021-11-23 03:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin_fini [2021-11-23 03:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_orig_dev_addr [2021-11-23 03:32:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_orig_dev_addr [2021-11-23 03:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_port_get [2021-11-23 03:32:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_port_get [2021-11-23 03:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_register [2021-11-23 03:32:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_register [2021-11-23 03:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-23 03:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_change_check [2021-11-23 03:32:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_change_check [2021-11-23 03:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:32:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-23 03:32:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-23 03:32:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_register [2021-11-23 03:32:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_register [2021-11-23 03:32:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 03:32:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 03:32:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_trim [2021-11-23 03:32:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_trim [2021-11-23 03:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_put [2021-11-23 03:32:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_put [2021-11-23 03:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_option [2021-11-23 03:32:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_option [2021-11-23 03:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_stats64 [2021-11-23 03:32:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_stats64 [2021-11-23 03:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 03:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2021-11-23 03:32:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2021-11-23 03:32:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-23 03:32:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-23 03:32:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_cancel [2021-11-23 03:32:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_cancel [2021-11-23 03:32:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 03:32:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 03:32:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2021-11-23 03:32:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2021-11-23 03:32:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_team_dev_addr [2021-11-23 03:32:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_team_dev_addr [2021-11-23 03:32:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_add_vid [2021-11-23 03:32:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_add_vid [2021-11-23 03:32:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:32:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:32:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:32:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head_rcu [2021-11-23 03:32:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head_rcu [2021-11-23 03:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-23 03:32:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-23 03:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-23 03:32:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-23 03:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure passthru_features_check [2021-11-23 03:32:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure passthru_features_check [2021-11-23 03:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers_work [2021-11-23 03:32:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers_work [2021-11-23 03:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure __team_carrier_check [2021-11-23 03:32:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_carrier_check [2021-11-23 03:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 03:32:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 03:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:32:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_start [2021-11-23 03:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_start [2021-11-23 03:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_get [2021-11-23 03:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_get [2021-11-23 03:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure nla_len [2021-11-23 03:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_len [2021-11-23 03:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2021-11-23 03:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2021-11-23 03:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable_netpoll [2021-11-23 03:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable_netpoll [2021-11-23 03:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-23 03:32:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-23 03:32:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_del [2021-11-23 03:32:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_del [2021-11-23 03:32:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 03:32:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 03:32:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:32:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-23 03:32:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-23 03:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2021-11-23 03:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2021-11-23 03:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_get [2021-11-23 03:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_get [2021-11-23 03:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-23 03:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-23 03:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:32:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enabled [2021-11-23 03:32:52,972 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enabled [2021-11-23 03:32:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 03:32:52,972 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 03:32:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure team_upper_dev_unlink [2021-11-23 03:32:52,972 INFO L138 BoogieDeclarations]: Found implementation of procedure team_upper_dev_unlink [2021-11-23 03:32:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure __team_find_option [2021-11-23 03:32:52,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_find_option [2021-11-23 03:32:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2021-11-23 03:32:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2021-11-23 03:32:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 03:32:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 03:32:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 03:32:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 03:32:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 03:32:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 03:32:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 03:32:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 03:32:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_option_get [2021-11-23 03:32:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_option_get [2021-11-23 03:32:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure team_is_mode_set [2021-11-23 03:32:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure team_is_mode_set [2021-11-23 03:32:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_add [2021-11-23 03:32:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_add [2021-11-23 03:32:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_change_check [2021-11-23 03:32:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_change_check [2021-11-23 03:32:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 03:32:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 03:32:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_rx_queues [2021-11-23 03:32:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_rx_queues [2021-11-23 03:32:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure call_netdevice_notifiers [2021-11-23 03:32:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure call_netdevice_notifiers [2021-11-23 03:32:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-23 03:32:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-23 03:32:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __team_compute_features [2021-11-23 03:32:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_compute_features [2021-11-23 03:32:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin_work [2021-11-23 03:32:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin_work [2021-11-23 03:32:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_leave [2021-11-23 03:32:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_leave [2021-11-23 03:32:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __send_and_alloc_skb [2021-11-23 03:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __send_and_alloc_skb [2021-11-23 03:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_put [2021-11-23 03:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_put [2021-11-23 03:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_init [2021-11-23 03:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_init [2021-11-23 03:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure __team_get_qom_list [2021-11-23 03:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_get_qom_list [2021-11-23 03:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_cancel [2021-11-23 03:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_cancel [2021-11-23 03:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_get [2021-11-23 03:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_get [2021-11-23 03:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del [2021-11-23 03:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del [2021-11-23 03:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_options_get [2021-11-23 03:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_options_get [2021-11-23 03:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_increment_features [2021-11-23 03:32:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_increment_features [2021-11-23 03:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure team_open [2021-11-23 03:32:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure team_open [2021-11-23 03:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2021-11-23 03:32:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2021-11-23 03:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_port [2021-11-23 03:32:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_port [2021-11-23 03:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_add [2021-11-23 03:32:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_add [2021-11-23 03:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_change_check [2021-11-23 03:32:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_change_check [2021-11-23 03:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 03:32:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 03:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure __set_port_dev_addr [2021-11-23 03:32:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_port_dev_addr [2021-11-23 03:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~int [2021-11-23 03:32:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~int [2021-11-23 03:32:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-23 03:32:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-23 03:32:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 03:32:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 03:32:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2021-11-23 03:32:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2021-11-23 03:32:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_rx_flags [2021-11-23 03:32:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_rx_flags [2021-11-23 03:32:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure team_validate [2021-11-23 03:32:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure team_validate [2021-11-23 03:32:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_del [2021-11-23 03:32:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_del [2021-11-23 03:32:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_free [2021-11-23 03:32:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_free [2021-11-23 03:32:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 03:32:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 03:32:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable [2021-11-23 03:32:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable [2021-11-23 03:32:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 03:32:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 03:32:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_dellink [2021-11-23 03:32:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_dellink [2021-11-23 03:32:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_no_mode [2021-11-23 03:32:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_no_mode [2021-11-23 03:32:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:32:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:32:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_flag [2021-11-23 03:32:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_flag [2021-11-23 03:32:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:32:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:32:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable_netpoll [2021-11-23 03:32:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable_netpoll [2021-11-23 03:32:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enter [2021-11-23 03:32:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enter [2021-11-23 03:32:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-23 03:32:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-23 03:32:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_string [2021-11-23 03:32:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_string [2021-11-23 03:32:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:32:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:32:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:32:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_event_options_get [2021-11-23 03:32:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_event_options_get [2021-11-23 03:32:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure team_close [2021-11-23 03:32:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure team_close [2021-11-23 03:32:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure team_uninit [2021-11-23 03:32:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure team_uninit [2021-11-23 03:32:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add [2021-11-23 03:32:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add [2021-11-23 03:32:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_skb_cb [2021-11-23 03:32:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_skb_cb [2021-11-23 03:32:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure team_newlink [2021-11-23 03:32:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure team_newlink [2021-11-23 03:32:54,233 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:32:54,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:32:54,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:33:00,971 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:33:04,275 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:33:04,276 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:33:04,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:04 BoogieIcfgContainer [2021-11-23 03:33:04,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:33:04,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:33:04,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:33:04,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:33:04,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:45" (1/3) ... [2021-11-23 03:33:04,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c27aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:04, skipping insertion in model container [2021-11-23 03:33:04,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:51" (2/3) ... [2021-11-23 03:33:04,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c27aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:04, skipping insertion in model container [2021-11-23 03:33:04,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:04" (3/3) ... [2021-11-23 03:33:04,302 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-23 03:33:04,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:33:04,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:33:04,409 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:33:04,431 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:33:04,432 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:33:04,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 2340 states, 1455 states have (on average 1.3628865979381444) internal successors, (1983), 1514 states have internal predecessors, (1983), 682 states have call successors, (682), 202 states have call predecessors, (682), 201 states have return successors, (674), 661 states have call predecessors, (674), 674 states have call successors, (674) [2021-11-23 03:33:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-23 03:33:04,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:04,678 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:04,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1984800565, now seen corresponding path program 1 times [2021-11-23 03:33:04,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:04,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845929962] [2021-11-23 03:33:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:04,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-23 03:33:06,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:06,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845929962] [2021-11-23 03:33:06,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845929962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:06,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:06,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:06,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600164580] [2021-11-23 03:33:06,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:06,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:06,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:06,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:06,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:06,202 INFO L87 Difference]: Start difference. First operand has 2340 states, 1455 states have (on average 1.3628865979381444) internal successors, (1983), 1514 states have internal predecessors, (1983), 682 states have call successors, (682), 202 states have call predecessors, (682), 201 states have return successors, (674), 661 states have call predecessors, (674), 674 states have call successors, (674) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-23 03:33:08,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:11,334 INFO L93 Difference]: Finished difference Result 6802 states and 9801 transitions. [2021-11-23 03:33:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:11,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 473 [2021-11-23 03:33:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:11,416 INFO L225 Difference]: With dead ends: 6802 [2021-11-23 03:33:11,417 INFO L226 Difference]: Without dead ends: 4523 [2021-11-23 03:33:11,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:11,456 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3157 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 6657 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:11,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3157 Valid, 6657 Invalid, 625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 621 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-23 03:33:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4523 states. [2021-11-23 03:33:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4523 to 4520. [2021-11-23 03:33:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 2831 states have (on average 1.3599434828682444) internal successors, (3850), 2927 states have internal predecessors, (3850), 1291 states have call successors, (1291), 398 states have call predecessors, (1291), 397 states have return successors, (1289), 1263 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-11-23 03:33:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 6430 transitions. [2021-11-23 03:33:11,894 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 6430 transitions. Word has length 473 [2021-11-23 03:33:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:11,898 INFO L470 AbstractCegarLoop]: Abstraction has 4520 states and 6430 transitions. [2021-11-23 03:33:11,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-23 03:33:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 6430 transitions. [2021-11-23 03:33:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-23 03:33:11,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:11,920 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:11,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:33:11,921 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1340105724, now seen corresponding path program 1 times [2021-11-23 03:33:11,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:11,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798511956] [2021-11-23 03:33:11,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:11,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-23 03:33:12,878 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:12,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798511956] [2021-11-23 03:33:12,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798511956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:12,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:33:12,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402698552] [2021-11-23 03:33:12,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:12,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:33:12,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:33:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:33:12,891 INFO L87 Difference]: Start difference. First operand 4520 states and 6430 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2021-11-23 03:33:14,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:19,823 INFO L93 Difference]: Finished difference Result 9441 states and 13528 transitions. [2021-11-23 03:33:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:33:19,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 471 [2021-11-23 03:33:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:19,892 INFO L225 Difference]: With dead ends: 9441 [2021-11-23 03:33:19,892 INFO L226 Difference]: Without dead ends: 5012 [2021-11-23 03:33:19,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:33:19,938 INFO L933 BasicCegarLoop]: 5848 mSDtfsCounter, 4307 mSDsluCounter, 9720 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4307 SdHoareTripleChecker+Valid, 14665 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:19,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4307 Valid, 14665 Invalid, 1919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [266 Valid, 1652 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-23 03:33:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-11-23 03:33:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4535. [2021-11-23 03:33:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 2840 states have (on average 1.3588028169014084) internal successors, (3859), 2936 states have internal predecessors, (3859), 1293 states have call successors, (1293), 402 states have call predecessors, (1293), 401 states have return successors, (1291), 1265 states have call predecessors, (1291), 1291 states have call successors, (1291) [2021-11-23 03:33:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6443 transitions. [2021-11-23 03:33:20,319 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6443 transitions. Word has length 471 [2021-11-23 03:33:20,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:20,323 INFO L470 AbstractCegarLoop]: Abstraction has 4535 states and 6443 transitions. [2021-11-23 03:33:20,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2021-11-23 03:33:20,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6443 transitions. [2021-11-23 03:33:20,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-23 03:33:20,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:20,340 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:20,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:33:20,341 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:20,342 INFO L85 PathProgramCache]: Analyzing trace with hash -407268237, now seen corresponding path program 1 times [2021-11-23 03:33:20,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727926981] [2021-11-23 03:33:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:20,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-23 03:33:21,064 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:21,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727926981] [2021-11-23 03:33:21,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727926981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:21,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:21,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:21,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839912913] [2021-11-23 03:33:21,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:21,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:21,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:21,074 INFO L87 Difference]: Start difference. First operand 4535 states and 6443 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-23 03:33:24,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:24,044 INFO L93 Difference]: Finished difference Result 13378 states and 19112 transitions. [2021-11-23 03:33:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:24,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 474 [2021-11-23 03:33:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:24,154 INFO L225 Difference]: With dead ends: 13378 [2021-11-23 03:33:24,154 INFO L226 Difference]: Without dead ends: 8938 [2021-11-23 03:33:24,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:24,195 INFO L933 BasicCegarLoop]: 3775 mSDtfsCounter, 3186 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:24,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3186 Valid, 6686 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 03:33:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8938 states. [2021-11-23 03:33:24,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8938 to 8928. [2021-11-23 03:33:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8928 states, 5602 states have (on average 1.362192074259193) internal successors, (7631), 5795 states have internal predecessors, (7631), 2530 states have call successors, (2530), 796 states have call predecessors, (2530), 795 states have return successors, (2620), 2474 states have call predecessors, (2620), 2528 states have call successors, (2620) [2021-11-23 03:33:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8928 states to 8928 states and 12781 transitions. [2021-11-23 03:33:24,796 INFO L78 Accepts]: Start accepts. Automaton has 8928 states and 12781 transitions. Word has length 474 [2021-11-23 03:33:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:24,798 INFO L470 AbstractCegarLoop]: Abstraction has 8928 states and 12781 transitions. [2021-11-23 03:33:24,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-23 03:33:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8928 states and 12781 transitions. [2021-11-23 03:33:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-11-23 03:33:24,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:24,825 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:24,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:33:24,826 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:24,827 INFO L85 PathProgramCache]: Analyzing trace with hash -394700822, now seen corresponding path program 1 times [2021-11-23 03:33:24,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:24,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099196340] [2021-11-23 03:33:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:24,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3843 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2021-11-23 03:33:25,403 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:25,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099196340] [2021-11-23 03:33:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099196340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:25,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:25,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:25,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058659335] [2021-11-23 03:33:25,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:25,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:25,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:25,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:25,419 INFO L87 Difference]: Start difference. First operand 8928 states and 12781 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-23 03:33:27,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:30,174 INFO L93 Difference]: Finished difference Result 19725 states and 28044 transitions. [2021-11-23 03:33:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:30,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 522 [2021-11-23 03:33:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:30,314 INFO L225 Difference]: With dead ends: 19725 [2021-11-23 03:33:30,314 INFO L226 Difference]: Without dead ends: 10901 [2021-11-23 03:33:30,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:30,377 INFO L933 BasicCegarLoop]: 4048 mSDtfsCounter, 2502 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:30,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 6838 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-23 03:33:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2021-11-23 03:33:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 10886. [2021-11-23 03:33:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10886 states, 6837 states have (on average 1.3565891472868217) internal successors, (9275), 7081 states have internal predecessors, (9275), 3011 states have call successors, (3011), 1038 states have call predecessors, (3011), 1037 states have return successors, (3105), 2950 states have call predecessors, (3105), 3009 states have call successors, (3105) [2021-11-23 03:33:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10886 states to 10886 states and 15391 transitions. [2021-11-23 03:33:31,191 INFO L78 Accepts]: Start accepts. Automaton has 10886 states and 15391 transitions. Word has length 522 [2021-11-23 03:33:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:31,192 INFO L470 AbstractCegarLoop]: Abstraction has 10886 states and 15391 transitions. [2021-11-23 03:33:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-23 03:33:31,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10886 states and 15391 transitions. [2021-11-23 03:33:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2021-11-23 03:33:31,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:31,223 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:31,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:33:31,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:31,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:31,224 INFO L85 PathProgramCache]: Analyzing trace with hash -589720263, now seen corresponding path program 1 times [2021-11-23 03:33:31,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:31,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364568447] [2021-11-23 03:33:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:31,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5045 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5043 trivial. 0 not checked. [2021-11-23 03:33:31,963 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:31,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364568447] [2021-11-23 03:33:31,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364568447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:31,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:31,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:31,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545353402] [2021-11-23 03:33:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:31,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:31,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:31,967 INFO L87 Difference]: Start difference. First operand 10886 states and 15391 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-23 03:33:34,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:38,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:38,197 INFO L93 Difference]: Finished difference Result 22402 states and 31732 transitions. [2021-11-23 03:33:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:38,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 596 [2021-11-23 03:33:38,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:38,280 INFO L225 Difference]: With dead ends: 22402 [2021-11-23 03:33:38,280 INFO L226 Difference]: Without dead ends: 14758 [2021-11-23 03:33:38,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:38,321 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2797 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 7675 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:38,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2797 Valid, 7675 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1060 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-23 03:33:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14758 states. [2021-11-23 03:33:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14758 to 14743. [2021-11-23 03:33:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14743 states, 9312 states have (on average 1.3507302405498283) internal successors, (12578), 9639 states have internal predecessors, (12578), 4016 states have call successors, (4016), 1415 states have call predecessors, (4016), 1414 states have return successors, (4140), 3936 states have call predecessors, (4140), 4014 states have call successors, (4140) [2021-11-23 03:33:38,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14743 states to 14743 states and 20734 transitions. [2021-11-23 03:33:39,003 INFO L78 Accepts]: Start accepts. Automaton has 14743 states and 20734 transitions. Word has length 596 [2021-11-23 03:33:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:39,005 INFO L470 AbstractCegarLoop]: Abstraction has 14743 states and 20734 transitions. [2021-11-23 03:33:39,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-23 03:33:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 14743 states and 20734 transitions. [2021-11-23 03:33:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-11-23 03:33:39,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:39,051 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:39,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:33:39,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:39,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1354274029, now seen corresponding path program 1 times [2021-11-23 03:33:39,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:39,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775538510] [2021-11-23 03:33:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:39,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5064 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5060 trivial. 0 not checked. [2021-11-23 03:33:39,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775538510] [2021-11-23 03:33:39,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775538510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:39,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:39,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:33:39,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694657995] [2021-11-23 03:33:39,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:39,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:33:39,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:33:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:33:39,917 INFO L87 Difference]: Start difference. First operand 14743 states and 20734 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-23 03:33:41,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:50,068 INFO L93 Difference]: Finished difference Result 29583 states and 41653 transitions. [2021-11-23 03:33:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:33:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) Word has length 634 [2021-11-23 03:33:50,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:50,183 INFO L225 Difference]: With dead ends: 29583 [2021-11-23 03:33:50,183 INFO L226 Difference]: Without dead ends: 18082 [2021-11-23 03:33:50,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:33:50,233 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2796 mSDsluCounter, 12666 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 72 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 16267 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:50,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2798 Valid, 16267 Invalid, 3581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 3508 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2021-11-23 03:33:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18082 states. [2021-11-23 03:33:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18082 to 18015. [2021-11-23 03:33:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18015 states, 11397 states have (on average 1.353952794595069) internal successors, (15431), 11800 states have internal predecessors, (15431), 4880 states have call successors, (4880), 1735 states have call predecessors, (4880), 1737 states have return successors, (5033), 4785 states have call predecessors, (5033), 4878 states have call successors, (5033) [2021-11-23 03:33:51,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18015 states to 18015 states and 25344 transitions. [2021-11-23 03:33:51,044 INFO L78 Accepts]: Start accepts. Automaton has 18015 states and 25344 transitions. Word has length 634 [2021-11-23 03:33:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:51,046 INFO L470 AbstractCegarLoop]: Abstraction has 18015 states and 25344 transitions. [2021-11-23 03:33:51,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-23 03:33:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18015 states and 25344 transitions. [2021-11-23 03:33:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2021-11-23 03:33:51,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:51,095 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:51,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:33:51,096 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:51,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash 590734554, now seen corresponding path program 1 times [2021-11-23 03:33:51,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:51,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305804631] [2021-11-23 03:33:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:51,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5064 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-23 03:33:51,723 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:51,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305804631] [2021-11-23 03:33:51,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305804631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:51,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:51,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:51,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711124825] [2021-11-23 03:33:51,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:51,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:51,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:51,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:51,727 INFO L87 Difference]: Start difference. First operand 18015 states and 25344 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-23 03:33:53,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:55,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:55,708 INFO L93 Difference]: Finished difference Result 34554 states and 48971 transitions. [2021-11-23 03:33:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:55,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 647 [2021-11-23 03:33:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:55,815 INFO L225 Difference]: With dead ends: 34554 [2021-11-23 03:33:55,815 INFO L226 Difference]: Without dead ends: 18022 [2021-11-23 03:33:55,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:55,884 INFO L933 BasicCegarLoop]: 2999 mSDtfsCounter, 0 mSDsluCounter, 3301 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:55,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5995 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 614 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 03:33:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18022 states. [2021-11-23 03:33:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18022 to 18022. [2021-11-23 03:33:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18022 states, 11404 states have (on average 1.353735531392494) internal successors, (15438), 11807 states have internal predecessors, (15438), 4880 states have call successors, (4880), 1735 states have call predecessors, (4880), 1737 states have return successors, (5033), 4785 states have call predecessors, (5033), 4878 states have call successors, (5033) [2021-11-23 03:33:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18022 states to 18022 states and 25351 transitions. [2021-11-23 03:33:56,664 INFO L78 Accepts]: Start accepts. Automaton has 18022 states and 25351 transitions. Word has length 647 [2021-11-23 03:33:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:56,666 INFO L470 AbstractCegarLoop]: Abstraction has 18022 states and 25351 transitions. [2021-11-23 03:33:56,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-23 03:33:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 18022 states and 25351 transitions. [2021-11-23 03:33:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2021-11-23 03:33:56,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:56,703 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:56,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:33:56,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash -459554384, now seen corresponding path program 1 times [2021-11-23 03:33:56,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:56,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848854682] [2021-11-23 03:33:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:56,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-23 03:33:57,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:57,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848854682] [2021-11-23 03:33:57,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848854682] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:33:57,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434134605] [2021-11-23 03:33:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:57,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:33:57,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:33:57,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:33:57,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cd8523-833a-4f86-9710-16e5fe11f21e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:33:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:59,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 6325 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:33:59,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 4982 trivial. 0 not checked. [2021-11-23 03:34:00,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-23 03:34:02,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434134605] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:34:02,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [957268337] [2021-11-23 03:34:02,333 INFO L159 IcfgInterpreter]: Started Sifa with 226 locations of interest [2021-11-23 03:34:02,334 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:34:02,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:34:02,346 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:34:02,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:34:12,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:12,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:14,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:14,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:17,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:17,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:18,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:21,232 INFO L244 Elim1Store]: Index analysis took 9097 ms