./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:05:03,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:05:03,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:05:03,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:05:03,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:05:03,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:05:03,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:05:03,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:05:03,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:05:03,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:05:03,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:05:03,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:05:03,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:05:03,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:05:03,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:05:03,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:05:03,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:05:03,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:05:03,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:05:03,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:05:03,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:05:03,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:05:03,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:05:03,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:05:03,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:05:03,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:05:03,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:05:03,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:05:03,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:05:03,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:05:03,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:05:03,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:05:03,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:05:03,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:05:03,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:05:03,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:05:03,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:05:03,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:05:03,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:05:03,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:05:03,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:05:03,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:05:03,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:05:03,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:05:03,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:05:03,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:05:03,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:05:03,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:05:03,523 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:05:03,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:05:03,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:05:03,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:05:03,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:05:03,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:05:03,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:05:03,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:05:03,525 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:05:03,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:05:03,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:05:03,526 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:05:03,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:05:03,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:05:03,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:05:03,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:05:03,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:05:03,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:05:03,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:05:03,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:05:03,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:05:03,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:05:03,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:05:03,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:05:03,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:05:03,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:05:03,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:05:03,536 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:05:03,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:05:03,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:05:03,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:05:03,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:05:03,537 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_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2021-11-25 20:05:03,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:05:03,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:05:03,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:05:03,862 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:05:03,863 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:05:03,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-25 20:05:03,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/data/f80794692/2b8d62d1893f4cdd9d9e7db999716039/FLAGda7418706 [2021-11-25 20:05:04,884 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:05:04,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-25 20:05:04,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/data/f80794692/2b8d62d1893f4cdd9d9e7db999716039/FLAGda7418706 [2021-11-25 20:05:05,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/data/f80794692/2b8d62d1893f4cdd9d9e7db999716039 [2021-11-25 20:05:05,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:05:05,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:05:05,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:05:05,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:05:05,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:05:05,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:05:05" (1/1) ... [2021-11-25 20:05:05,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d919adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:05, skipping insertion in model container [2021-11-25 20:05:05,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:05:05" (1/1) ... [2021-11-25 20:05:05,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:05:05,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:05:08,190 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_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-25 20:05:08,193 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_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-25 20:05:08,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:05:08,295 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:05:08,721 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_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-25 20:05:08,725 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_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-25 20:05:08,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:05:08,998 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:05:08,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08 WrapperNode [2021-11-25 20:05:08,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:05:09,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:05:09,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:05:09,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:05:09,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,342 INFO L137 Inliner]: procedures = 434, calls = 2034, calls flagged for inlining = 218, calls inlined = 203, statements flattened = 4923 [2021-11-25 20:05:09,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:05:09,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:05:09,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:05:09,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:05:09,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:05:09,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:05:09,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:05:09,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:05:09,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (1/1) ... [2021-11-25 20:05:09,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:05:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:05:09,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:05:09,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:05:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 20:05:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 20:05:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:05:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:05:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:05:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:05:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-25 20:05:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-25 20:05:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 20:05:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 20:05:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:05:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:05:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2021-11-25 20:05:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2021-11-25 20:05:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2021-11-25 20:05:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2021-11-25 20:05:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:05:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:05:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:05:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:05:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 20:05:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 20:05:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 20:05:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 20:05:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2021-11-25 20:05:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2021-11-25 20:05:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:05:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:05:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:05:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:05:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:05:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:05:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 20:05:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 20:05:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:05:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:05:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:05:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:05:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-11-25 20:05:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-11-25 20:05:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 20:05:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 20:05:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:05:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:05:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:05:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 20:05:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 20:05:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:05:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:05:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:05:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:05:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:05:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:05:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:05:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:05:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:05:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:05:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:05:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:05:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:05:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-25 20:05:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-25 20:05:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:05:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:05:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2021-11-25 20:05:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2021-11-25 20:05:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:05:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:05:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:05:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:05:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:05:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:05:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:05:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:05:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2021-11-25 20:05:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2021-11-25 20:05:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:05:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:05:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:05:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:05:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:05:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:05:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-25 20:05:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-25 20:05:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:05:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:05:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:05:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:05:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:05:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:05:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:05:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:05:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:05:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:05:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:05:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:05:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:05:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:05:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:05:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:05:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:05:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:05:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:05:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:05:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2021-11-25 20:05:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2021-11-25 20:05:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2021-11-25 20:05:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2021-11-25 20:05:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-25 20:05:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-25 20:05:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:05:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:05:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-25 20:05:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:05:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 20:05:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 20:05:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:05:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:05:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-25 20:05:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-25 20:05:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:05:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:05:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:05:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:05:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-25 20:05:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-25 20:05:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:05:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:05:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:05:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:05:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:05:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:05:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:05:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:05:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 20:05:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 20:05:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2021-11-25 20:05:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2021-11-25 20:05:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:05:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:05:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:05:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-25 20:05:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-25 20:05:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:05:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:05:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-25 20:05:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-25 20:05:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-25 20:05:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-25 20:05:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 20:05:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 20:05:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:05:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:05:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:05:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:05:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:05:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:05:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:05:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:05:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:05:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-11-25 20:05:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-11-25 20:05:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-25 20:05:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-25 20:05:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 20:05:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 20:05:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:05:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:05:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 20:05:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 20:05:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:05:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:05:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 20:05:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 20:05:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:05:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:05:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2021-11-25 20:05:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2021-11-25 20:05:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:05:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:05:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:05:10,582 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:05:10,586 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:05:11,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:05:13,931 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:05:14,010 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:05:15,345 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:05:15,346 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 20:05:15,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:15 BoogieIcfgContainer [2021-11-25 20:05:15,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:05:15,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:05:15,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:05:15,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:05:15,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:05:05" (1/3) ... [2021-11-25 20:05:15,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a387f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:15, skipping insertion in model container [2021-11-25 20:05:15,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:08" (2/3) ... [2021-11-25 20:05:15,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a387f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:15, skipping insertion in model container [2021-11-25 20:05:15,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:15" (3/3) ... [2021-11-25 20:05:15,360 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-25 20:05:15,366 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:05:15,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:05:15,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:05:15,436 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:05:15,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:05:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 1200 states, 675 states have (on average 1.2874074074074073) internal successors, (869), 697 states have internal predecessors, (869), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) [2021-11-25 20:05:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-25 20:05:15,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:15,531 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2021-11-25 20:05:15,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:15,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:15,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1297958084, now seen corresponding path program 1 times [2021-11-25 20:05:15,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:15,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094275160] [2021-11-25 20:05:15,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:15,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-11-25 20:05:16,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094275160] [2021-11-25 20:05:16,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094275160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:16,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:16,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:16,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643405383] [2021-11-25 20:05:16,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:16,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:16,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:16,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:16,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:16,346 INFO L87 Difference]: Start difference. First operand has 1200 states, 675 states have (on average 1.2874074074074073) internal successors, (869), 697 states have internal predecessors, (869), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 20:05:18,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:18,136 INFO L93 Difference]: Finished difference Result 3342 states and 4880 transitions. [2021-11-25 20:05:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:18,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 138 [2021-11-25 20:05:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:18,180 INFO L225 Difference]: With dead ends: 3342 [2021-11-25 20:05:18,181 INFO L226 Difference]: Without dead ends: 2105 [2021-11-25 20:05:18,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:18,197 INFO L933 BasicCegarLoop]: 1871 mSDtfsCounter, 1434 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 3310 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:18,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1434 Valid, 3310 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:05:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-11-25 20:05:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2101. [2021-11-25 20:05:18,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 1190 states have (on average 1.2739495798319327) internal successors, (1516), 1227 states have internal predecessors, (1516), 751 states have call successors, (751), 160 states have call predecessors, (751), 159 states have return successors, (756), 739 states have call predecessors, (756), 751 states have call successors, (756) [2021-11-25 20:05:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 3023 transitions. [2021-11-25 20:05:18,430 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 3023 transitions. Word has length 138 [2021-11-25 20:05:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:18,431 INFO L470 AbstractCegarLoop]: Abstraction has 2101 states and 3023 transitions. [2021-11-25 20:05:18,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 20:05:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 3023 transitions. [2021-11-25 20:05:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-25 20:05:18,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:18,440 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2021-11-25 20:05:18,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:05:18,441 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash -405504832, now seen corresponding path program 1 times [2021-11-25 20:05:18,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:18,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137106657] [2021-11-25 20:05:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:18,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-25 20:05:18,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:18,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137106657] [2021-11-25 20:05:18,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137106657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:18,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:18,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:18,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260930077] [2021-11-25 20:05:18,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:18,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:18,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:18,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:18,773 INFO L87 Difference]: Start difference. First operand 2101 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:05:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:20,512 INFO L93 Difference]: Finished difference Result 5984 states and 8561 transitions. [2021-11-25 20:05:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:20,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2021-11-25 20:05:20,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:20,553 INFO L225 Difference]: With dead ends: 5984 [2021-11-25 20:05:20,553 INFO L226 Difference]: Without dead ends: 3900 [2021-11-25 20:05:20,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:20,575 INFO L933 BasicCegarLoop]: 1808 mSDtfsCounter, 1425 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:20,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1425 Valid, 3211 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:05:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-11-25 20:05:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3895. [2021-11-25 20:05:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 2188 states have (on average 1.2577696526508226) internal successors, (2752), 2261 states have internal predecessors, (2752), 1392 states have call successors, (1392), 316 states have call predecessors, (1392), 314 states have return successors, (1405), 1365 states have call predecessors, (1405), 1392 states have call successors, (1405) [2021-11-25 20:05:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5549 transitions. [2021-11-25 20:05:20,872 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5549 transitions. Word has length 165 [2021-11-25 20:05:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:20,873 INFO L470 AbstractCegarLoop]: Abstraction has 3895 states and 5549 transitions. [2021-11-25 20:05:20,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:05:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5549 transitions. [2021-11-25 20:05:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-25 20:05:20,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:20,882 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:20,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:05:20,883 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:20,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1487084844, now seen corresponding path program 1 times [2021-11-25 20:05:20,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:20,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496586791] [2021-11-25 20:05:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:20,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-25 20:05:21,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:21,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496586791] [2021-11-25 20:05:21,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496586791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:21,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:21,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:05:21,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797948289] [2021-11-25 20:05:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:21,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:05:21,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:21,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:05:21,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:05:21,132 INFO L87 Difference]: Start difference. First operand 3895 states and 5549 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:05:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:26,683 INFO L93 Difference]: Finished difference Result 12076 states and 17045 transitions. [2021-11-25 20:05:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:05:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2021-11-25 20:05:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:26,762 INFO L225 Difference]: With dead ends: 12076 [2021-11-25 20:05:26,763 INFO L226 Difference]: Without dead ends: 8198 [2021-11-25 20:05:26,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:05:26,805 INFO L933 BasicCegarLoop]: 2331 mSDtfsCounter, 3622 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 3530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:26,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3746 Valid, 4725 Invalid, 3530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 2645 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-25 20:05:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8198 states. [2021-11-25 20:05:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8198 to 8178. [2021-11-25 20:05:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8178 states, 4712 states have (on average 1.2606112054329373) internal successors, (5940), 4859 states have internal predecessors, (5940), 2741 states have call successors, (2741), 728 states have call predecessors, (2741), 724 states have return successors, (2754), 2701 states have call predecessors, (2754), 2741 states have call successors, (2754) [2021-11-25 20:05:27,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11435 transitions. [2021-11-25 20:05:27,414 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11435 transitions. Word has length 159 [2021-11-25 20:05:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:27,415 INFO L470 AbstractCegarLoop]: Abstraction has 8178 states and 11435 transitions. [2021-11-25 20:05:27,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:05:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11435 transitions. [2021-11-25 20:05:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-25 20:05:27,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:27,423 INFO L514 BasicCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:27,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:05:27,424 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:27,424 INFO L85 PathProgramCache]: Analyzing trace with hash -161082968, now seen corresponding path program 1 times [2021-11-25 20:05:27,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:27,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915120587] [2021-11-25 20:05:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:27,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-11-25 20:05:27,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:27,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915120587] [2021-11-25 20:05:27,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915120587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:27,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:27,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:27,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127589139] [2021-11-25 20:05:27,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:27,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:27,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:27,693 INFO L87 Difference]: Start difference. First operand 8178 states and 11435 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:05:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:29,681 INFO L93 Difference]: Finished difference Result 18296 states and 25581 transitions. [2021-11-25 20:05:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 202 [2021-11-25 20:05:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:29,764 INFO L225 Difference]: With dead ends: 18296 [2021-11-25 20:05:29,764 INFO L226 Difference]: Without dead ends: 10135 [2021-11-25 20:05:29,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:29,803 INFO L933 BasicCegarLoop]: 2285 mSDtfsCounter, 1025 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:29,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 3684 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:05:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2021-11-25 20:05:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 10129. [2021-11-25 20:05:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10129 states, 5879 states have (on average 1.260588535465215) internal successors, (7411), 6059 states have internal predecessors, (7411), 3343 states have call successors, (3343), 910 states have call predecessors, (3343), 906 states have return successors, (3356), 3299 states have call predecessors, (3356), 3343 states have call successors, (3356) [2021-11-25 20:05:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10129 states to 10129 states and 14110 transitions. [2021-11-25 20:05:30,467 INFO L78 Accepts]: Start accepts. Automaton has 10129 states and 14110 transitions. Word has length 202 [2021-11-25 20:05:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:30,469 INFO L470 AbstractCegarLoop]: Abstraction has 10129 states and 14110 transitions. [2021-11-25 20:05:30,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:05:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10129 states and 14110 transitions. [2021-11-25 20:05:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-25 20:05:30,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:30,480 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:30,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:05:30,480 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2097496315, now seen corresponding path program 1 times [2021-11-25 20:05:30,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:30,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826374213] [2021-11-25 20:05:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:30,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-25 20:05:30,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:30,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826374213] [2021-11-25 20:05:30,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826374213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:30,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:30,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:30,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238041515] [2021-11-25 20:05:30,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:30,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:30,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:30,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:30,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:30,797 INFO L87 Difference]: Start difference. First operand 10129 states and 14110 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 20:05:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:32,783 INFO L93 Difference]: Finished difference Result 20349 states and 28429 transitions. [2021-11-25 20:05:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:32,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 264 [2021-11-25 20:05:32,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:32,870 INFO L225 Difference]: With dead ends: 20349 [2021-11-25 20:05:32,870 INFO L226 Difference]: Without dead ends: 10237 [2021-11-25 20:05:32,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:32,905 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 4 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:32,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 2873 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:05:32,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2021-11-25 20:05:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 10165. [2021-11-25 20:05:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 5915 states have (on average 1.259002535925613) internal successors, (7447), 6095 states have internal predecessors, (7447), 3343 states have call successors, (3343), 910 states have call predecessors, (3343), 906 states have return successors, (3356), 3299 states have call predecessors, (3356), 3343 states have call successors, (3356) [2021-11-25 20:05:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 14146 transitions. [2021-11-25 20:05:33,609 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 14146 transitions. Word has length 264 [2021-11-25 20:05:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:33,611 INFO L470 AbstractCegarLoop]: Abstraction has 10165 states and 14146 transitions. [2021-11-25 20:05:33,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 20:05:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 14146 transitions. [2021-11-25 20:05:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-25 20:05:33,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:33,622 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:33,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:05:33,623 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:33,624 INFO L85 PathProgramCache]: Analyzing trace with hash -283563066, now seen corresponding path program 1 times [2021-11-25 20:05:33,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:33,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454927112] [2021-11-25 20:05:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:33,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-25 20:05:33,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:33,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454927112] [2021-11-25 20:05:33,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454927112] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:05:33,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226873667] [2021-11-25 20:05:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:33,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:05:33,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:05:33,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:05:33,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781b2cfe-f3ad-4c75-8452-d7dd843adfa7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:05:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:35,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 3616 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:05:35,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:05:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-25 20:05:35,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:05:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-25 20:05:36,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226873667] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:05:36,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1058417427] [2021-11-25 20:05:36,122 INFO L159 IcfgInterpreter]: Started Sifa with 143 locations of interest [2021-11-25 20:05:36,122 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:05:36,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:05:36,133 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:05:36,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:07:50,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:07:50,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:08:26,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:08:26,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:08:26,419 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:08:26,425 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:08:27,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:08:27,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:08:27,663 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:08:27,666 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:11:24,128 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 2838 for LOIs [2021-11-25 20:12:49,966 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_open with input of size 293 for LOIs [2021-11-25 20:12:50,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-25 20:12:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:50,554 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:12:50,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 29 [2021-11-25 20:12:51,424 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:12:51,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2021-11-25 20:12:51,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-25 20:12:52,512 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:12:52,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 277 treesize of output 275 [2021-11-25 20:12:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:52,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:52,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:12:52,583 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:12:52,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 249 treesize of output 235 [2021-11-25 20:12:54,343 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:12:54,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 283 treesize of output 269 [2021-11-25 20:12:54,404 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:12:54,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 253 treesize of output 251 [2021-11-25 20:12:57,164 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:12:57,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:12:57,265 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:12:57,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:12:59,232 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:12:59,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:12:59,307 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:12:59,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:13:01,582 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:01,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:13:01,689 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:01,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:13:03,943 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:03,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:13:04,038 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:04,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:13:08,024 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:08,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 909 treesize of output 907 [2021-11-25 20:13:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:08,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:08,249 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:13:08,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 937 treesize of output 923 [2021-11-25 20:13:12,996 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:12,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 971 treesize of output 957 [2021-11-25 20:13:13,259 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:13,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 941 treesize of output 939 [2021-11-25 20:13:20,838 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:20,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 971 treesize of output 957 [2021-11-25 20:13:21,068 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:21,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 941 treesize of output 939 [2021-11-25 20:13:25,387 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:25,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:13:25,467 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:25,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:13:27,209 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:27,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 513 [2021-11-25 20:13:27,293 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:27,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 495 [2021-11-25 20:13:28,434 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-25 20:13:28,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 277 treesize of output 275 [2021-11-25 20:13:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:28,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:28,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:13:28,493 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:13:28,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 249 treesize of output 235 [2021-11-25 20:13:29,720 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-25 20:13:29,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2021-11-25 20:13:29,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-25 20:13:29,950 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 242 for LOIs [2021-11-25 20:13:30,002 INFO L197 IcfgInterpreter]: Interpreting procedure iowrite32 with input of size 308 for LOIs [2021-11-25 20:13:30,411 INFO L197 IcfgInterpreter]: Interpreting procedure netif_device_detach with input of size 297 for LOIs [2021-11-25 20:13:30,768 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 338 for LOIs [2021-11-25 20:13:32,028 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 324 for LOIs [2021-11-25 20:13:32,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:13:32,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:13:40,846 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 347 for LOIs [2021-11-25 20:13:42,866 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 342 for LOIs [2021-11-25 20:13:43,007 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_priv with input of size 294 for LOIs [2021-11-25 20:13:43,382 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:14:25,165 WARN L227 SmtUtils]: Spent 41.59s on a formula simplification that was a NOOP. DAG size: 2679 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:16:02,989 WARN L227 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 2853 DAG size of output: 2773 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)