./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/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_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:52:59,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:52:59,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:52:59,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:52:59,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:52:59,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:52:59,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:52:59,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:52:59,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:52:59,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:52:59,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:52:59,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:52:59,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:52:59,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:52:59,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:52:59,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:52:59,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:52:59,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:52:59,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:52:59,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:52:59,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:52:59,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:52:59,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:52:59,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:52:59,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:52:59,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:52:59,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:52:59,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:52:59,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:52:59,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:52:59,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:52:59,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:52:59,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:52:59,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:52:59,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:52:59,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:52:59,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:52:59,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:52:59,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:52:59,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:52:59,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:52:59,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:52:59,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:52:59,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:52:59,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:52:59,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:52:59,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:52:59,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:52:59,935 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:52:59,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:52:59,936 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:52:59,936 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:52:59,946 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:52:59,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:52:59,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:52:59,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:52:59,948 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:52:59,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:52:59,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:52:59,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:52:59,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:52:59,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:52:59,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:52:59,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:52:59,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:52:59,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:52:59,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:52:59,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:52:59,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:52:59,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:52:59,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:52:59,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:52:59,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:52:59,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:52:59,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:52:59,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:52:59,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:52:59,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:52:59,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:52:59,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:52:59,957 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2021-11-23 03:53:00,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:53:00,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:53:00,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:53:00,274 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:53:00,275 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:53:00,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-23 03:53:00,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/data/e89ef883b/38475b743d10472cb3d557452c12fd96/FLAGf858c18e5 [2021-11-23 03:53:01,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:53:01,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-23 03:53:01,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/data/e89ef883b/38475b743d10472cb3d557452c12fd96/FLAGf858c18e5 [2021-11-23 03:53:01,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/data/e89ef883b/38475b743d10472cb3d557452c12fd96 [2021-11-23 03:53:01,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:53:01,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:53:01,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:53:01,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:53:01,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:53:01,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:01" (1/1) ... [2021-11-23 03:53:01,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6924aaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:01, skipping insertion in model container [2021-11-23 03:53:01,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:53:01" (1/1) ... [2021-11-23 03:53:01,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:53:02,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:53:06,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-23 03:53:06,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-23 03:53:06,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:53:06,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:53:07,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-23 03:53:07,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-23 03:53:07,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:53:07,375 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:53:07,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07 WrapperNode [2021-11-23 03:53:07,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:53:07,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:53:07,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:53:07,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:53:07,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:07,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:07,841 INFO L137 Inliner]: procedures = 521, calls = 3820, calls flagged for inlining = 276, calls inlined = 261, statements flattened = 6818 [2021-11-23 03:53:07,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:53:07,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:53:07,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:53:07,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:53:07,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:07,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:07,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:07,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:08,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:08,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:08,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:08,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:53:08,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:53:08,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:53:08,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:53:08,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (1/1) ... [2021-11-23 03:53:08,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:53:08,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:53:08,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:53:08,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca89826-47c3-4f87-b6a4-672e1451f5a6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:53:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-23 03:53:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-23 03:53:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-23 03:53:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-23 03:53:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-23 03:53:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-23 03:53:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-23 03:53:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-23 03:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:53:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:53:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:53:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-23 03:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-23 03:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-23 03:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-23 03:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 03:53:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 03:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:53:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-23 03:53:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-23 03:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-23 03:53:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-23 03:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-23 03:53:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-23 03:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:53:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:53:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-23 03:53:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-23 03:53:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-23 03:53:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-23 03:53:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-23 03:53:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-23 03:53:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:53:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:53:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 03:53:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 03:53:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-23 03:53:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-23 03:53:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:53:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-23 03:53:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-23 03:53:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-23 03:53:08,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-23 03:53:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-23 03:53:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-23 03:53:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:53:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-23 03:53:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-23 03:53:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2021-11-23 03:53:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2021-11-23 03:53:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:53:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:53:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:53:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:53:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-23 03:53:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-23 03:53:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:53:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:53:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:53:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-23 03:53:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-23 03:53:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:53:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:53:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:53:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-23 03:53:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-23 03:53:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:53:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:53:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:53:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:53:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 03:53:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 03:53:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:53:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:53:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:53:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:53:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-23 03:53:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-23 03:53:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-23 03:53:08,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-23 03:53:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-23 03:53:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-23 03:53:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 03:53:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 03:53:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:53:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:53:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-23 03:53:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-23 03:53:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-23 03:53:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-23 03:53:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-23 03:53:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-23 03:53:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 03:53:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 03:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 03:53:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 03:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:53:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:53:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 03:53:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 03:53:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-23 03:53:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-23 03:53:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-23 03:53:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-23 03:53:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:53:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:53:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:53:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:53:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:53:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:53:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:53:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:53:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:53:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:53:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 03:53:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-23 03:53:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-23 03:53:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 03:53:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 03:53:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-23 03:53:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-23 03:53:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-23 03:53:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-23 03:53:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:53:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:53:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-23 03:53:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-23 03:53:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-23 03:53:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-23 03:53:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-23 03:53:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-23 03:53:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-23 03:53:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-23 03:53:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-23 03:53:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-23 03:53:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-23 03:53:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-23 03:53:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:53:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:53:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:53:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:53:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-23 03:53:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-23 03:53:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:53:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:53:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:53:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:53:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-23 03:53:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-23 03:53:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-23 03:53:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-23 03:53:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-23 03:53:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-23 03:53:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-23 03:53:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-23 03:53:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-23 03:53:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-23 03:53:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 03:53:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 03:53:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:53:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:53:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:53:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:53:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-23 03:53:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-23 03:53:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:53:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:53:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 03:53:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 03:53:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-23 03:53:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-23 03:53:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:53:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-23 03:53:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-23 03:53:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:53:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:53:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 03:53:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 03:53:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:53:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:53:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-23 03:53:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-23 03:53:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-23 03:53:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-23 03:53:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-23 03:53:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-23 03:53:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 03:53:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 03:53:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-23 03:53:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-23 03:53:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-23 03:53:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-23 03:53:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:53:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-23 03:53:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-23 03:53:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 03:53:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 03:53:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:53:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:53:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-23 03:53:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-23 03:53:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-23 03:53:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-23 03:53:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-23 03:53:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-23 03:53:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-23 03:53:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-23 03:53:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 03:53:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 03:53:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-23 03:53:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-23 03:53:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:53:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:53:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-23 03:53:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-23 03:53:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:53:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:53:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-23 03:53:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-23 03:53:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-23 03:53:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-23 03:53:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 03:53:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:53:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:53:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:53:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-23 03:53:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-23 03:53:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:53:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:53:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-23 03:53:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-23 03:53:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-23 03:53:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-23 03:53:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-23 03:53:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-23 03:53:09,761 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:53:09,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:53:09,978 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:53:19,904 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:53:20,096 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:53:21,770 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:53:21,771 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:53:21,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:53:21 BoogieIcfgContainer [2021-11-23 03:53:21,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:53:21,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:53:21,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:53:21,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:53:21,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:53:01" (1/3) ... [2021-11-23 03:53:21,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afdc6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:53:21, skipping insertion in model container [2021-11-23 03:53:21,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:53:07" (2/3) ... [2021-11-23 03:53:21,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afdc6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:53:21, skipping insertion in model container [2021-11-23 03:53:21,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:53:21" (3/3) ... [2021-11-23 03:53:21,790 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-23 03:53:21,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:53:21,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:53:21,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:53:21,887 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:53:21,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:53:21,985 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) [2021-11-23 03:53:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-23 03:53:22,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:22,037 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:22,038 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:53:22,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:22,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1458294750, now seen corresponding path program 1 times [2021-11-23 03:53:22,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:22,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113183873] [2021-11-23 03:53:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:22,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-23 03:53:23,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:23,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113183873] [2021-11-23 03:53:23,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113183873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:23,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:23,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:53:23,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652009252] [2021-11-23 03:53:23,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:23,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:53:23,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:23,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:53:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:23,315 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 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-23 03:53:25,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:28,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:30,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:32,080 INFO L93 Difference]: Finished difference Result 7241 states and 11339 transitions. [2021-11-23 03:53:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:53:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 411 [2021-11-23 03:53:32,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:32,183 INFO L225 Difference]: With dead ends: 7241 [2021-11-23 03:53:32,184 INFO L226 Difference]: Without dead ends: 4756 [2021-11-23 03:53:32,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:32,227 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 3644 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3648 SdHoareTripleChecker+Valid, 8164 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:32,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3648 Valid, 8164 Invalid, 775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 758 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 03:53:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2021-11-23 03:53:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 4750. [2021-11-23 03:53:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4750 states, 2235 states have (on average 1.2483221476510067) internal successors, (2790), 2302 states have internal predecessors, (2790), 2294 states have call successors, (2294), 220 states have call predecessors, (2294), 220 states have return successors, (2317), 2259 states have call predecessors, (2317), 2294 states have call successors, (2317) [2021-11-23 03:53:32,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4750 states to 4750 states and 7401 transitions. [2021-11-23 03:53:32,913 INFO L78 Accepts]: Start accepts. Automaton has 4750 states and 7401 transitions. Word has length 411 [2021-11-23 03:53:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:32,915 INFO L470 AbstractCegarLoop]: Abstraction has 4750 states and 7401 transitions. [2021-11-23 03:53:32,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-23 03:53:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4750 states and 7401 transitions. [2021-11-23 03:53:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-23 03:53:32,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:32,933 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:32,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:53:32,934 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:53:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:32,935 INFO L85 PathProgramCache]: Analyzing trace with hash -873679616, now seen corresponding path program 1 times [2021-11-23 03:53:32,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:32,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806972478] [2021-11-23 03:53:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:32,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-23 03:53:33,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806972478] [2021-11-23 03:53:33,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806972478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:33,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:33,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:53:33,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312733145] [2021-11-23 03:53:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:33,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:53:33,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:53:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:33,464 INFO L87 Difference]: Start difference. First operand 4750 states and 7401 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) [2021-11-23 03:53:37,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:39,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:41,185 INFO L93 Difference]: Finished difference Result 13968 states and 21801 transitions. [2021-11-23 03:53:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:53:41,186 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 [2021-11-23 03:53:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:41,298 INFO L225 Difference]: With dead ends: 13968 [2021-11-23 03:53:41,298 INFO L226 Difference]: Without dead ends: 9291 [2021-11-23 03:53:41,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:41,348 INFO L933 BasicCegarLoop]: 4600 mSDtfsCounter, 3577 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3581 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:41,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3581 Valid, 8017 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 754 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-11-23 03:53:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9291 states. [2021-11-23 03:53:42,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9291 to 9278. [2021-11-23 03:53:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 4346 states have (on average 1.2439024390243902) internal successors, (5406), 4481 states have internal predecessors, (5406), 4491 states have call successors, (4491), 440 states have call predecessors, (4491), 440 states have return successors, (4574), 4420 states have call predecessors, (4574), 4491 states have call successors, (4574) [2021-11-23 03:53:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14471 transitions. [2021-11-23 03:53:42,444 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14471 transitions. Word has length 414 [2021-11-23 03:53:42,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:42,446 INFO L470 AbstractCegarLoop]: Abstraction has 9278 states and 14471 transitions. [2021-11-23 03:53:42,447 INFO L471 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) [2021-11-23 03:53:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14471 transitions. [2021-11-23 03:53:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-23 03:53:42,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:42,467 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:42,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:53:42,467 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:53:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash -80510760, now seen corresponding path program 1 times [2021-11-23 03:53:42,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:42,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502870015] [2021-11-23 03:53:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:42,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-23 03:53:42,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:42,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502870015] [2021-11-23 03:53:42,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502870015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:42,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:42,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:53:42,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066380790] [2021-11-23 03:53:42,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:42,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:53:42,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:42,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:53:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:42,963 INFO L87 Difference]: Start difference. First operand 9278 states and 14471 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-23 03:53:45,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:48,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:51,066 INFO L93 Difference]: Finished difference Result 27390 states and 42783 transitions. [2021-11-23 03:53:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:53:51,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 412 [2021-11-23 03:53:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:51,269 INFO L225 Difference]: With dead ends: 27390 [2021-11-23 03:53:51,269 INFO L226 Difference]: Without dead ends: 18185 [2021-11-23 03:53:51,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:51,522 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 3566 mSDsluCounter, 3735 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 8013 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:51,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3573 Valid, 8013 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 754 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 03:53:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18185 states. [2021-11-23 03:53:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18185 to 18166. [2021-11-23 03:53:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18166 states, 8474 states have (on average 1.2383762095822517) internal successors, (10494), 8745 states have internal predecessors, (10494), 8811 states have call successors, (8811), 880 states have call predecessors, (8811), 880 states have return successors, (9046), 8668 states have call predecessors, (9046), 8811 states have call successors, (9046) [2021-11-23 03:53:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18166 states to 18166 states and 28351 transitions. [2021-11-23 03:53:53,285 INFO L78 Accepts]: Start accepts. Automaton has 18166 states and 28351 transitions. Word has length 412 [2021-11-23 03:53:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:53,287 INFO L470 AbstractCegarLoop]: Abstraction has 18166 states and 28351 transitions. [2021-11-23 03:53:53,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-23 03:53:53,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18166 states and 28351 transitions. [2021-11-23 03:53:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-23 03:53:53,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:53,304 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:53,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:53:53,305 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:53:53,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash 751109315, now seen corresponding path program 1 times [2021-11-23 03:53:53,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94522449] [2021-11-23 03:53:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:53,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-23 03:53:53,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:53,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94522449] [2021-11-23 03:53:53,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94522449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:53,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:53,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:53:53,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282238332] [2021-11-23 03:53:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:53,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:53:53,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:53,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:53:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:53,764 INFO L87 Difference]: Start difference. First operand 18166 states and 28351 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) [2021-11-23 03:53:56,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:57,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:54:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:54:01,089 INFO L93 Difference]: Finished difference Result 53707 states and 83885 transitions. [2021-11-23 03:54:01,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:54:01,090 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 [2021-11-23 03:54:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:54:01,526 INFO L225 Difference]: With dead ends: 53707 [2021-11-23 03:54:01,526 INFO L226 Difference]: Without dead ends: 35614 [2021-11-23 03:54:01,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:01,656 INFO L933 BasicCegarLoop]: 4661 mSDtfsCounter, 3579 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:54:01,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 8078 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 763 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 03:54:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35614 states. [2021-11-23 03:54:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35614 to 35579. [2021-11-23 03:54:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35579 states, 16526 states have (on average 1.2307878494493525) internal successors, (20340), 17064 states have internal predecessors, (20340), 17306 states have call successors, (17306), 1747 states have call predecessors, (17306), 1746 states have return successors, (17859), 17023 states have call predecessors, (17859), 17306 states have call successors, (17859) [2021-11-23 03:54:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35579 states to 35579 states and 55505 transitions. [2021-11-23 03:54:04,953 INFO L78 Accepts]: Start accepts. Automaton has 35579 states and 55505 transitions. Word has length 413 [2021-11-23 03:54:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:54:04,955 INFO L470 AbstractCegarLoop]: Abstraction has 35579 states and 55505 transitions. [2021-11-23 03:54:04,955 INFO L471 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) [2021-11-23 03:54:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 35579 states and 55505 transitions. [2021-11-23 03:54:04,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-23 03:54:04,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:54:04,967 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:54:04,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:54:04,968 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:54:04,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:54:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash -695554493, now seen corresponding path program 1 times [2021-11-23 03:54:04,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:54:04,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804544376] [2021-11-23 03:54:04,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:54:04,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:54:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:54:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-23 03:54:05,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:54:05,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804544376] [2021-11-23 03:54:05,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804544376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:54:05,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:54:05,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:54:05,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408454713] [2021-11-23 03:54:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:54:05,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:54:05,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:54:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:54:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:05,626 INFO L87 Difference]: Start difference. First operand 35579 states and 55505 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) [2021-11-23 03:54:08,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:54:11,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:54:13,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:54:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:54:16,453 INFO L93 Difference]: Finished difference Result 101718 states and 158678 transitions. [2021-11-23 03:54:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:54:16,454 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 [2021-11-23 03:54:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:54:17,117 INFO L225 Difference]: With dead ends: 101718 [2021-11-23 03:54:17,117 INFO L226 Difference]: Without dead ends: 66212 [2021-11-23 03:54:17,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:17,338 INFO L933 BasicCegarLoop]: 6201 mSDtfsCounter, 3318 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 9633 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:54:17,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 9633 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-23 03:54:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66212 states. [2021-11-23 03:54:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66212 to 66193. [2021-11-23 03:54:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66193 states, 30444 states have (on average 1.2228025226645645) internal successors, (37227), 31501 states have internal predecessors, (37227), 32407 states have call successors, (32407), 3337 states have call predecessors, (32407), 3341 states have return successors, (33390), 31842 states have call predecessors, (33390), 32407 states have call successors, (33390) [2021-11-23 03:54:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66193 states to 66193 states and 103024 transitions. [2021-11-23 03:54:22,400 INFO L78 Accepts]: Start accepts. Automaton has 66193 states and 103024 transitions. Word has length 414 [2021-11-23 03:54:22,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:54:22,401 INFO L470 AbstractCegarLoop]: Abstraction has 66193 states and 103024 transitions. [2021-11-23 03:54:22,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (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) [2021-11-23 03:54:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 66193 states and 103024 transitions. [2021-11-23 03:54:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-23 03:54:22,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:54:22,409 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:54:22,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:54:22,409 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:54:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:54:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 73598017, now seen corresponding path program 1 times [2021-11-23 03:54:22,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:54:22,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736861809] [2021-11-23 03:54:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:54:22,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:54:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:54:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2021-11-23 03:54:22,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:54:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736861809] [2021-11-23 03:54:22,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736861809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:54:22,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:54:22,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:54:22,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694791379] [2021-11-23 03:54:22,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:54:22,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:54:22,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:54:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:54:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:22,820 INFO L87 Difference]: Start difference. First operand 66193 states and 103024 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) [2021-11-23 03:54:25,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:54:28,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:54:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:54:34,490 INFO L93 Difference]: Finished difference Result 194782 states and 304924 transitions. [2021-11-23 03:54:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:54:34,491 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 [2021-11-23 03:54:34,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:54:35,552 INFO L225 Difference]: With dead ends: 194782 [2021-11-23 03:54:35,552 INFO L226 Difference]: Without dead ends: 128662 [2021-11-23 03:54:36,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:36,195 INFO L933 BasicCegarLoop]: 4601 mSDtfsCounter, 3533 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:54:36,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3542 Valid, 8056 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-23 03:54:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128662 states. [2021-11-23 03:54:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128662 to 128579. [2021-11-23 03:54:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128579 states, 58646 states have (on average 1.2192476895269924) internal successors, (71504), 60681 states have internal predecessors, (71504), 63448 states have call successors, (63448), 6508 states have call predecessors, (63448), 6484 states have return successors, (66879), 62237 states have call predecessors, (66879), 63448 states have call successors, (66879) [2021-11-23 03:54:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128579 states to 128579 states and 201831 transitions. [2021-11-23 03:54:46,300 INFO L78 Accepts]: Start accepts. Automaton has 128579 states and 201831 transitions. Word has length 426 [2021-11-23 03:54:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:54:46,301 INFO L470 AbstractCegarLoop]: Abstraction has 128579 states and 201831 transitions. [2021-11-23 03:54:46,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (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) [2021-11-23 03:54:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 128579 states and 201831 transitions. [2021-11-23 03:54:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-23 03:54:46,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:54:46,311 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:54:46,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:54:46,311 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:54:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:54:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1964302061, now seen corresponding path program 1 times [2021-11-23 03:54:46,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:54:46,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720029696] [2021-11-23 03:54:46,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:54:46,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:54:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:54:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2021-11-23 03:54:46,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:54:46,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720029696] [2021-11-23 03:54:46,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720029696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:54:46,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:54:46,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:54:46,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190384727] [2021-11-23 03:54:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:54:46,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:54:46,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:54:46,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:54:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:54:46,783 INFO L87 Difference]: Start difference. First operand 128579 states and 201831 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) [2021-11-23 03:54:49,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:54:52,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:54:55,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []