./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:52:40,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:52:40,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:52:40,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:52:40,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:52:40,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:52:40,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:52:40,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:52:40,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:52:40,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:52:40,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:52:40,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:52:40,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:52:40,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:52:40,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:52:40,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:52:40,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:52:40,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:52:40,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:52:40,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:52:40,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:52:40,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:52:40,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:52:40,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:52:40,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:52:40,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:52:40,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:52:40,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:52:40,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:52:40,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:52:40,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:52:40,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:52:40,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:52:40,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:52:40,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:52:40,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:52:41,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:52:41,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:52:41,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:52:41,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:52:41,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:52:41,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:52:41,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:52:41,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:52:41,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:52:41,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:52:41,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:52:41,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:52:41,047 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:52:41,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:52:41,047 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:52:41,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:52:41,049 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:52:41,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:52:41,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:52:41,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:52:41,050 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:52:41,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:52:41,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:52:41,050 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:52:41,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:52:41,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:52:41,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:52:41,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:52:41,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:52:41,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:52:41,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:52:41,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:52:41,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:52:41,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:52:41,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:52:41,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:41,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:52:41,054 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:52:41,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:52:41,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:52:41,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:52:41,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:52:41,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:52:41,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:52:41,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2022-11-22 01:52:41,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:52:41,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:52:41,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:52:41,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:52:41,355 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:52:41,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-11-22 01:52:44,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:52:45,259 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:52:45,260 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-11-22 01:52:45,322 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/data/bda842c97/43753873526b4bceae6c834afed18aeb/FLAG9273cb3ad [2022-11-22 01:52:45,346 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/data/bda842c97/43753873526b4bceae6c834afed18aeb [2022-11-22 01:52:45,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:52:45,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:52:45,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:45,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:52:45,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:52:45,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:45" (1/1) ... [2022-11-22 01:52:45,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb43e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:45, skipping insertion in model container [2022-11-22 01:52:45,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:45" (1/1) ... [2022-11-22 01:52:45,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:52:45,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:52:49,567 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2022-11-22 01:52:49,571 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2022-11-22 01:52:49,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:49,665 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:52:50,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2022-11-22 01:52:50,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2022-11-22 01:52:50,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:50,317 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:52:50,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50 WrapperNode [2022-11-22 01:52:50,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:50,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:50,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:52:50,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:52:50,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:50,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:50,790 INFO L138 Inliner]: procedures = 521, calls = 3892, calls flagged for inlining = 276, calls inlined = 261, statements flattened = 6846 [2022-11-22 01:52:50,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:50,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:52:50,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:52:50,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:52:50,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:50,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:50,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:50,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,231 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:52:51,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:52:51,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:52:51,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:52:51,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (1/1) ... [2022-11-22 01:52:51,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:51,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:52:51,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:52:51,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13b93e6-8842-4fa3-9b4e-628a7d4cb4a9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:52:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-22 01:52:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-22 01:52:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 01:52:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 01:52:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-22 01:52:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-22 01:52:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-22 01:52:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-22 01:52:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:52:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:52:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:52:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:52:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:52:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:52:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-22 01:52:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-22 01:52:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-22 01:52:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-22 01:52:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:52:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:52:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:52:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:52:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:52:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:52:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-22 01:52:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-22 01:52:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-22 01:52:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-22 01:52:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-22 01:52:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-22 01:52:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:52:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:52:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-22 01:52:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-22 01:52:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-22 01:52:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-22 01:52:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-22 01:52:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-22 01:52:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:52:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:52:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:52:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:52:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-11-22 01:52:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-11-22 01:52:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:52:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-22 01:52:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-22 01:52:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-22 01:52:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-22 01:52:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-22 01:52:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-22 01:52:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:52:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-22 01:52:51,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-22 01:52:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2022-11-22 01:52:51,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2022-11-22 01:52:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:52:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:52:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:52:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:52:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-22 01:52:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-22 01:52:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:52:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:52:51,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:52:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-22 01:52:51,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-22 01:52:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:52:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:52:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:52:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-22 01:52:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-22 01:52:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:52:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:52:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:52:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:52:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:52:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:52:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:52:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:52:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:52:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:52:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-22 01:52:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-22 01:52:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-22 01:52:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-22 01:52:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-22 01:52:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-22 01:52:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:52:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:52:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:52:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:52:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-22 01:52:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-22 01:52:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-22 01:52:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-22 01:52:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-22 01:52:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-22 01:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 01:52:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 01:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:52:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:52:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:52:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:52:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:52:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-22 01:52:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-22 01:52:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-22 01:52:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-22 01:52:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:52:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:52:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:52:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:52:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:52:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:52:51,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:52:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:52:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:52:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:52:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:52:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-22 01:52:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-22 01:52:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 01:52:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 01:52:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2022-11-22 01:52:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2022-11-22 01:52:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-22 01:52:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-22 01:52:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:52:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:52:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-22 01:52:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-22 01:52:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-22 01:52:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-22 01:52:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-11-22 01:52:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-11-22 01:52:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-22 01:52:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-22 01:52:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-22 01:52:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-22 01:52:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 01:52:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 01:52:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:52:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:52:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-22 01:52:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:52:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:52:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-22 01:52:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-22 01:52:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2022-11-22 01:52:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2022-11-22 01:52:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-22 01:52:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-22 01:52:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-22 01:52:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-22 01:52:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-22 01:52:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-22 01:52:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-22 01:52:51,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-22 01:52:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:52:51,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:52:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:52:51,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:52:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-22 01:52:51,468 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-22 01:52:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:52:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:52:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:52:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:52:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-22 01:52:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-22 01:52:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:52:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-22 01:52:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-22 01:52:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:52:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:52:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:52:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:52:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:52:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:52:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-22 01:52:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-22 01:52:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-22 01:52:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-22 01:52:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:52:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-22 01:52:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-22 01:52:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-22 01:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-22 01:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 01:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 01:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-22 01:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-22 01:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-22 01:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-22 01:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-11-22 01:52:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-11-22 01:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-11-22 01:52:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-11-22 01:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-22 01:52:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-22 01:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-22 01:52:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-22 01:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:52:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:52:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-22 01:52:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-22 01:52:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:52:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:52:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-22 01:52:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-22 01:52:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-22 01:52:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-22 01:52:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:52:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:52:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:52:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:52:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-22 01:52:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-22 01:52:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:52:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:52:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-22 01:52:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-22 01:52:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-22 01:52:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-22 01:52:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-22 01:52:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-22 01:52:52,643 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:52:52,646 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:52:52,995 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:53:03,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:53:04,177 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:53:06,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:53:06,388 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:53:06,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:06 BoogieIcfgContainer [2022-11-22 01:53:06,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:53:06,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:53:06,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:53:06,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:53:06,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:52:45" (1/3) ... [2022-11-22 01:53:06,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118ac25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:06, skipping insertion in model container [2022-11-22 01:53:06,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:50" (2/3) ... [2022-11-22 01:53:06,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118ac25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:06, skipping insertion in model container [2022-11-22 01:53:06,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:06" (3/3) ... [2022-11-22 01:53:06,410 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-11-22 01:53:06,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:53:06,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:53:06,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:53:06,593 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42e865c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:53:06,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:53:06,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) [2022-11-22 01:53:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-22 01:53:06,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:06,687 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:06,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:06,696 INFO L85 PathProgramCache]: Analyzing trace with hash 336311099, now seen corresponding path program 1 times [2022-11-22 01:53:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:06,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411945868] [2022-11-22 01:53:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2022-11-22 01:53:08,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:08,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411945868] [2022-11-22 01:53:08,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411945868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:08,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:08,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:08,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598874020] [2022-11-22 01:53:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:08,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:08,495 INFO L87 Difference]: Start difference. First operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:10,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:14,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:16,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:16,238 INFO L93 Difference]: Finished difference Result 7233 states and 11330 transitions. [2022-11-22 01:53:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:16,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 413 [2022-11-22 01:53:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:16,299 INFO L225 Difference]: With dead ends: 7233 [2022-11-22 01:53:16,299 INFO L226 Difference]: Without dead ends: 4748 [2022-11-22 01:53:16,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:16,328 INFO L413 NwaCegarLoop]: 4687 mSDtfsCounter, 3625 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3632 SdHoareTripleChecker+Valid, 8172 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:16,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3632 Valid, 8172 Invalid, 763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 01:53:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2022-11-22 01:53:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4741. [2022-11-22 01:53:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 2230 states have (on average 1.248878923766816) internal successors, (2785), 2297 states have internal predecessors, (2785), 2290 states have call successors, (2290), 220 states have call predecessors, (2290), 220 states have return successors, (2316), 2255 states have call predecessors, (2316), 2290 states have call successors, (2316) [2022-11-22 01:53:16,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 7391 transitions. [2022-11-22 01:53:16,954 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 7391 transitions. Word has length 413 [2022-11-22 01:53:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:16,961 INFO L495 AbstractCegarLoop]: Abstraction has 4741 states and 7391 transitions. [2022-11-22 01:53:16,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:16,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 7391 transitions. [2022-11-22 01:53:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 01:53:16,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:16,982 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:16,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:53:16,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash 629357151, now seen corresponding path program 1 times [2022-11-22 01:53:16,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:16,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665769410] [2022-11-22 01:53:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2022-11-22 01:53:18,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:18,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665769410] [2022-11-22 01:53:18,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665769410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:18,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:18,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302724434] [2022-11-22 01:53:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:18,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:18,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:18,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:18,047 INFO L87 Difference]: Start difference. First operand 4741 states and 7391 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-22 01:53:22,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:25,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:26,238 INFO L93 Difference]: Finished difference Result 13947 states and 21775 transitions. [2022-11-22 01:53:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:26,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 414 [2022-11-22 01:53:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:26,330 INFO L225 Difference]: With dead ends: 13947 [2022-11-22 01:53:26,330 INFO L226 Difference]: Without dead ends: 9279 [2022-11-22 01:53:26,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:26,373 INFO L413 NwaCegarLoop]: 4609 mSDtfsCounter, 3587 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 8032 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:26,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3587 Valid, 8032 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 743 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-22 01:53:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2022-11-22 01:53:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9267. [2022-11-22 01:53:27,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 4340 states have (on average 1.2442396313364055) internal successors, (5400), 4474 states have internal predecessors, (5400), 4486 states have call successors, (4486), 440 states have call predecessors, (4486), 440 states have return successors, (4570), 4416 states have call predecessors, (4570), 4486 states have call successors, (4570) [2022-11-22 01:53:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 14456 transitions. [2022-11-22 01:53:27,377 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 14456 transitions. Word has length 414 [2022-11-22 01:53:27,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:27,379 INFO L495 AbstractCegarLoop]: Abstraction has 9267 states and 14456 transitions. [2022-11-22 01:53:27,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-22 01:53:27,380 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 14456 transitions. [2022-11-22 01:53:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 01:53:27,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:27,394 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:27,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:53:27,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1063858742, now seen corresponding path program 1 times [2022-11-22 01:53:27,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:27,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060847733] [2022-11-22 01:53:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:27,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2022-11-22 01:53:28,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060847733] [2022-11-22 01:53:28,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060847733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:28,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:28,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344686695] [2022-11-22 01:53:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:28,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:28,246 INFO L87 Difference]: Start difference. First operand 9267 states and 14456 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:33,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:34,594 INFO L93 Difference]: Finished difference Result 26733 states and 41755 transitions. [2022-11-22 01:53:34,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:34,601 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2022-11-22 01:53:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:34,777 INFO L225 Difference]: With dead ends: 26733 [2022-11-22 01:53:34,777 INFO L226 Difference]: Without dead ends: 17539 [2022-11-22 01:53:34,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:34,862 INFO L413 NwaCegarLoop]: 4896 mSDtfsCounter, 3318 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 8334 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:34,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 8334 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 785 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 01:53:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17539 states. [2022-11-22 01:53:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17539 to 17531. [2022-11-22 01:53:36,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17531 states, 8100 states have (on average 1.2375308641975309) internal successors, (10024), 8370 states have internal predecessors, (10024), 8578 states have call successors, (8578), 852 states have call predecessors, (8578), 852 states have return successors, (8739), 8432 states have call predecessors, (8739), 8578 states have call successors, (8739) [2022-11-22 01:53:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17531 states to 17531 states and 27341 transitions. [2022-11-22 01:53:36,676 INFO L78 Accepts]: Start accepts. Automaton has 17531 states and 27341 transitions. Word has length 414 [2022-11-22 01:53:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:36,679 INFO L495 AbstractCegarLoop]: Abstraction has 17531 states and 27341 transitions. [2022-11-22 01:53:36,679 INFO L496 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 17531 states and 27341 transitions. [2022-11-22 01:53:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 01:53:36,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:36,702 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:36,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:53:36,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:36,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:36,704 INFO L85 PathProgramCache]: Analyzing trace with hash -490947406, now seen corresponding path program 1 times [2022-11-22 01:53:36,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:36,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579973539] [2022-11-22 01:53:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:36,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2022-11-22 01:53:37,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:37,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579973539] [2022-11-22 01:53:37,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579973539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:37,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:37,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:37,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696475880] [2022-11-22 01:53:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:37,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:37,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:37,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:37,387 INFO L87 Difference]: Start difference. First operand 17531 states and 27341 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:39,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:42,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:45,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:45,647 INFO L93 Difference]: Finished difference Result 51883 states and 81002 transitions. [2022-11-22 01:53:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:45,647 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2022-11-22 01:53:45,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:45,916 INFO L225 Difference]: With dead ends: 51883 [2022-11-22 01:53:45,916 INFO L226 Difference]: Without dead ends: 34425 [2022-11-22 01:53:46,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:46,038 INFO L413 NwaCegarLoop]: 4602 mSDtfsCounter, 3560 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 8025 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:46,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 8025 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 744 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 01:53:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34425 states. [2022-11-22 01:53:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34425 to 34393. [2022-11-22 01:53:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34393 states, 15822 states have (on average 1.230565036025787) internal successors, (19470), 16364 states have internal predecessors, (19470), 16866 states have call successors, (16866), 1704 states have call predecessors, (16866), 1704 states have return successors, (17299), 16572 states have call predecessors, (17299), 16866 states have call successors, (17299) [2022-11-22 01:53:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34393 states to 34393 states and 53635 transitions. [2022-11-22 01:53:49,401 INFO L78 Accepts]: Start accepts. Automaton has 34393 states and 53635 transitions. Word has length 414 [2022-11-22 01:53:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:49,408 INFO L495 AbstractCegarLoop]: Abstraction has 34393 states and 53635 transitions. [2022-11-22 01:53:49,408 INFO L496 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 01:53:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 34393 states and 53635 transitions. [2022-11-22 01:53:49,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-22 01:53:49,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:49,420 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:49,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:53:49,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:49,421 INFO L85 PathProgramCache]: Analyzing trace with hash -866543879, now seen corresponding path program 1 times [2022-11-22 01:53:49,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:49,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049761803] [2022-11-22 01:53:49,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2022-11-22 01:53:50,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:50,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049761803] [2022-11-22 01:53:50,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049761803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:50,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:50,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:50,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97758189] [2022-11-22 01:53:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:50,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:50,634 INFO L87 Difference]: Start difference. First operand 34393 states and 53635 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-22 01:53:53,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:53:55,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:59,898 INFO L93 Difference]: Finished difference Result 100484 states and 156705 transitions. [2022-11-22 01:53:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:59,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 413 [2022-11-22 01:53:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:00,752 INFO L225 Difference]: With dead ends: 100484 [2022-11-22 01:54:00,752 INFO L226 Difference]: Without dead ends: 66164 [2022-11-22 01:54:01,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:01,042 INFO L413 NwaCegarLoop]: 4604 mSDtfsCounter, 3566 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 8027 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:01,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 8027 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 742 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 01:54:01,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66164 states. [2022-11-22 01:54:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66164 to 66092. [2022-11-22 01:54:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66092 states, 30388 states have (on average 1.223213110438331) internal successors, (37171), 31444 states have internal predecessors, (37171), 32362 states have call successors, (32362), 3337 states have call predecessors, (32362), 3341 states have return successors, (33367), 31798 states have call predecessors, (33367), 32362 states have call successors, (33367) [2022-11-22 01:54:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66092 states to 66092 states and 102900 transitions. [2022-11-22 01:54:07,087 INFO L78 Accepts]: Start accepts. Automaton has 66092 states and 102900 transitions. Word has length 413 [2022-11-22 01:54:07,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:07,088 INFO L495 AbstractCegarLoop]: Abstraction has 66092 states and 102900 transitions. [2022-11-22 01:54:07,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-22 01:54:07,089 INFO L276 IsEmpty]: Start isEmpty. Operand 66092 states and 102900 transitions. [2022-11-22 01:54:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-11-22 01:54:07,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:07,094 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:07,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:54:07,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash -149537437, now seen corresponding path program 1 times [2022-11-22 01:54:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:07,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585281106] [2022-11-22 01:54:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:07,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2022-11-22 01:54:07,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585281106] [2022-11-22 01:54:07,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585281106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:07,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:07,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:07,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718279451] [2022-11-22 01:54:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:07,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:07,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:07,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:07,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:07,733 INFO L87 Difference]: Start difference. First operand 66092 states and 102900 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 01:54:10,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:54:13,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:16,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:22,583 INFO L93 Difference]: Finished difference Result 194601 states and 304699 transitions. [2022-11-22 01:54:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 426 [2022-11-22 01:54:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:23,554 INFO L225 Difference]: With dead ends: 194601 [2022-11-22 01:54:23,555 INFO L226 Difference]: Without dead ends: 128582 [2022-11-22 01:54:24,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:24,132 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 3546 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 8081 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:24,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 8081 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 685 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:54:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128582 states. [2022-11-22 01:54:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128582 to 128514. [2022-11-22 01:54:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128514 states, 58610 states have (on average 1.2193823579593925) internal successors, (71468), 60644 states have internal predecessors, (71468), 63419 states have call successors, (63419), 6508 states have call predecessors, (63419), 6484 states have return successors, (66858), 62209 states have call predecessors, (66858), 63419 states have call successors, (66858) [2022-11-22 01:54:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128514 states to 128514 states and 201745 transitions. [2022-11-22 01:54:34,898 INFO L78 Accepts]: Start accepts. Automaton has 128514 states and 201745 transitions. Word has length 426 [2022-11-22 01:54:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:34,899 INFO L495 AbstractCegarLoop]: Abstraction has 128514 states and 201745 transitions. [2022-11-22 01:54:34,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 01:54:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 128514 states and 201745 transitions. [2022-11-22 01:54:34,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-22 01:54:34,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:34,905 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:34,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:54:34,906 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:34,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:34,906 INFO L85 PathProgramCache]: Analyzing trace with hash -960369813, now seen corresponding path program 1 times [2022-11-22 01:54:34,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:34,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819290658] [2022-11-22 01:54:34,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:34,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2022-11-22 01:54:35,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:35,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819290658] [2022-11-22 01:54:35,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819290658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:35,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:35,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:35,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935847041] [2022-11-22 01:54:35,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:35,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:35,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:35,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:35,998 INFO L87 Difference]: Start difference. First operand 128514 states and 201745 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-22 01:54:38,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:54:41,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:44,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []