./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW --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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:46:31,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:46:31,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:46:31,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:46:31,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:46:31,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:46:31,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:46:31,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:46:31,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:46:31,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:46:31,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:46:31,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:46:31,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:46:31,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:46:31,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:46:31,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:46:31,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:46:32,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:46:32,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:46:32,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:46:32,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:46:32,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:46:32,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:46:32,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:46:32,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:46:32,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:46:32,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:46:32,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:46:32,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:46:32,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:46:32,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:46:32,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:46:32,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:46:32,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:46:32,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:46:32,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:46:32,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:46:32,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:46:32,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:46:32,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:46:32,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:46:32,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:46:32,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:46:32,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:46:32,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:46:32,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:46:32,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:46:32,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:46:32,076 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:46:32,076 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:46:32,076 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:46:32,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:46:32,078 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:46:32,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:46:32,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:46:32,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:46:32,079 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:46:32,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:46:32,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:46:32,079 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:46:32,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:46:32,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:46:32,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:46:32,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:46:32,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:46:32,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:46:32,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:46:32,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:46:32,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:46:32,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:46:32,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:46:32,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:46:32,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:46:32,083 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:46:32,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:46:32,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:46:32,084 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:46:32,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:46:32,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:46:32,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:46:32,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2022-11-23 13:46:32,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:46:32,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:46:32,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:46:32,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:46:32,471 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:46:32,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-23 13:46:35,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:46:36,147 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:46:36,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-23 13:46:36,210 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/data/93253cd5f/edb3b62b03f24b99afd71baf68359535/FLAGa24e31769 [2022-11-23 13:46:36,261 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/data/93253cd5f/edb3b62b03f24b99afd71baf68359535 [2022-11-23 13:46:36,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:46:36,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:46:36,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:46:36,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:46:36,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:46:36,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:36" (1/1) ... [2022-11-23 13:46:36,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e49a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:36, skipping insertion in model container [2022-11-23 13:46:36,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:36" (1/1) ... [2022-11-23 13:46:36,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:46:36,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:46:39,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-23 13:46:39,862 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-23 13:46:39,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:46:39,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:46:40,941 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-23 13:46:40,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-23 13:46:40,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:46:41,307 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:46:41,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41 WrapperNode [2022-11-23 13:46:41,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:46:41,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:46:41,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:46:41,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:46:41,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,605 INFO L138 Inliner]: procedures = 493, calls = 2689, calls flagged for inlining = 240, calls inlined = 225, statements flattened = 5150 [2022-11-23 13:46:41,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:46:41,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:46:41,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:46:41,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:46:41,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,876 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:46:41,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:46:41,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:46:41,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:46:41,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (1/1) ... [2022-11-23 13:46:41,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:46:41,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:46:41,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:46:41,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c17143-a694-49bc-b90d-25cfa059efff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:46:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-23 13:46:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-23 13:46:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 13:46:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 13:46:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-23 13:46:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-23 13:46:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 13:46:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 13:46:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-23 13:46:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-23 13:46:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-23 13:46:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-23 13:46:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 13:46:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 13:46:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-11-23 13:46:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-11-23 13:46:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:46:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:46:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-23 13:46:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-23 13:46:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-23 13:46:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-23 13:46:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-23 13:46:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-23 13:46:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-23 13:46:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-23 13:46:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-23 13:46:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-23 13:46:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 13:46:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 13:46:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-23 13:46:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-23 13:46:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-23 13:46:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-23 13:46:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-23 13:46:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-23 13:46:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-23 13:46:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-23 13:46:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-23 13:46:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-23 13:46:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 13:46:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 13:46:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 13:46:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 13:46:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-23 13:46:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-23 13:46:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-23 13:46:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-23 13:46:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:46:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 13:46:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 13:46:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 13:46:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 13:46:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:46:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 13:46:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 13:46:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-23 13:46:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-23 13:46:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-23 13:46:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-23 13:46:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:46:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 13:46:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 13:46:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-23 13:46:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-23 13:46:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:46:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-23 13:46:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-23 13:46:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 13:46:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 13:46:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 13:46:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 13:46:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-23 13:46:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-23 13:46:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 13:46:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 13:46:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 13:46:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 13:46:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 13:46:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 13:46:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-23 13:46:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-23 13:46:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-23 13:46:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-23 13:46:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 13:46:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 13:46:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 13:46:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 13:46:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-23 13:46:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-23 13:46:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-23 13:46:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-23 13:46:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-23 13:46:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-23 13:46:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-23 13:46:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-23 13:46:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:46:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 13:46:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 13:46:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 13:46:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 13:46:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:46:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 13:46:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 13:46:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 13:46:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 13:46:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-23 13:46:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-23 13:46:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:46:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-23 13:46:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-23 13:46:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:46:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:46:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 13:46:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 13:46:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:46:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:46:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:46:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:46:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 13:46:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 13:46:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-23 13:46:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-23 13:46:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 13:46:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 13:46:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-23 13:46:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-23 13:46:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 13:46:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 13:46:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 13:46:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 13:46:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-23 13:46:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-23 13:46:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-23 13:46:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-23 13:46:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-23 13:46:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-23 13:46:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-23 13:46:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-23 13:46:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-23 13:46:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-23 13:46:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:46:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:46:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-23 13:46:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-23 13:46:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:46:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:46:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 13:46:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 13:46:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-23 13:46:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-23 13:46:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 13:46:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 13:46:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-23 13:46:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-23 13:46:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-23 13:46:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-23 13:46:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-23 13:46:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-23 13:46:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 13:46:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 13:46:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-23 13:46:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-23 13:46:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-23 13:46:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-23 13:46:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 13:46:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 13:46:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-23 13:46:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-23 13:46:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-23 13:46:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-23 13:46:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-23 13:46:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-23 13:46:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 13:46:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 13:46:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:46:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-23 13:46:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-23 13:46:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-23 13:46:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-23 13:46:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:46:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 13:46:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 13:46:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-23 13:46:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-23 13:46:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:46:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 13:46:42,049 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 13:46:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-23 13:46:42,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-23 13:46:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-23 13:46:42,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-23 13:46:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 13:46:42,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 13:46:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-23 13:46:42,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-23 13:46:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-23 13:46:42,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-23 13:46:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 13:46:42,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 13:46:42,050 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-23 13:46:42,051 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-23 13:46:42,051 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-23 13:46:42,051 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-23 13:46:42,051 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-23 13:46:42,051 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-23 13:46:42,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 13:46:42,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 13:46:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 13:46:42,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 13:46:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 13:46:42,052 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 13:46:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-23 13:46:42,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-23 13:46:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-23 13:46:42,053 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-23 13:46:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 13:46:42,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 13:46:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-23 13:46:42,053 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-23 13:46:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:46:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-23 13:46:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-23 13:46:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:46:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:46:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-23 13:46:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-23 13:46:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-23 13:46:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-23 13:46:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-23 13:46:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-23 13:46:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-23 13:46:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-23 13:46:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 13:46:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 13:46:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-23 13:46:42,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-23 13:46:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-23 13:46:42,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-23 13:46:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 13:46:42,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 13:46:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-23 13:46:42,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-23 13:46:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-23 13:46:42,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-23 13:46:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-23 13:46:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-23 13:46:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:46:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 13:46:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 13:46:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-23 13:46:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-23 13:46:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 13:46:42,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 13:46:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-23 13:46:42,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-23 13:46:43,156 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:46:43,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:46:43,501 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 13:46:45,160 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1252#1.base, #t~mem1252#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-23 13:46:45,160 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1252#1.base, #t~mem1252#1.offset, 129, 0); srcloc: null [2022-11-23 13:46:45,160 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1252#1.base, #t~mem1252#1.offset; [2022-11-23 13:46:49,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 13:46:49,547 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:46:51,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:46:51,399 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 13:46:51,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:51 BoogieIcfgContainer [2022-11-23 13:46:51,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:46:51,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:46:51,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:46:51,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:46:51,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:46:36" (1/3) ... [2022-11-23 13:46:51,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1838f00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:51, skipping insertion in model container [2022-11-23 13:46:51,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:41" (2/3) ... [2022-11-23 13:46:51,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1838f00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:51, skipping insertion in model container [2022-11-23 13:46:51,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:51" (3/3) ... [2022-11-23 13:46:51,418 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-23 13:46:51,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:46:51,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:46:51,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:46:51,609 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66da69e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:46:51,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:46:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) [2022-11-23 13:46:51,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 13:46:51,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:51,666 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:46:51,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:46:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:51,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2012234851, now seen corresponding path program 1 times [2022-11-23 13:46:51,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:51,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205572810] [2022-11-23 13:46:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:46:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-23 13:46:52,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:46:52,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205572810] [2022-11-23 13:46:52,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205572810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:46:52,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:46:52,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:46:52,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931570521] [2022-11-23 13:46:52,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:46:52,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:46:52,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:46:52,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:46:52,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:46:52,612 INFO L87 Difference]: Start difference. First operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 13:46:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:46:56,705 INFO L93 Difference]: Finished difference Result 5785 states and 8722 transitions. [2022-11-23 13:46:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:46:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-11-23 13:46:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:46:56,770 INFO L225 Difference]: With dead ends: 5785 [2022-11-23 13:46:56,771 INFO L226 Difference]: Without dead ends: 3746 [2022-11-23 13:46:56,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:46:56,804 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 2683 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 13:46:56,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 6015 Invalid, 778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 13:46:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-11-23 13:46:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3743. [2022-11-23 13:46:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 2102 states have (on average 1.30732635585157) internal successors, (2748), 2233 states have internal predecessors, (2748), 1413 states have call successors, (1413), 227 states have call predecessors, (1413), 227 states have return successors, (1413), 1327 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-23 13:46:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5574 transitions. [2022-11-23 13:46:57,254 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5574 transitions. Word has length 189 [2022-11-23 13:46:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:46:57,258 INFO L495 AbstractCegarLoop]: Abstraction has 3743 states and 5574 transitions. [2022-11-23 13:46:57,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 13:46:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5574 transitions. [2022-11-23 13:46:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-23 13:46:57,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:57,285 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:46:57,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:46:57,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:46:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1240449862, now seen corresponding path program 1 times [2022-11-23 13:46:57,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:57,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187971732] [2022-11-23 13:46:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:46:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-11-23 13:46:57,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:46:57,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187971732] [2022-11-23 13:46:57,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187971732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:46:57,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:46:57,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:46:57,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773056988] [2022-11-23 13:46:57,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:46:57,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:46:57,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:46:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:46:57,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:46:57,689 INFO L87 Difference]: Start difference. First operand 3743 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 13:47:00,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:47:02,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:02,316 INFO L93 Difference]: Finished difference Result 10501 states and 15613 transitions. [2022-11-23 13:47:02,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:47:02,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 238 [2022-11-23 13:47:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:02,376 INFO L225 Difference]: With dead ends: 10501 [2022-11-23 13:47:02,376 INFO L226 Difference]: Without dead ends: 6789 [2022-11-23 13:47:02,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:02,404 INFO L413 NwaCegarLoop]: 3247 mSDtfsCounter, 2383 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 5805 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:02,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 5805 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 741 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 13:47:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-23 13:47:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6780. [2022-11-23 13:47:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6780 states, 3823 states have (on average 1.3055192257389485) internal successors, (4991), 4069 states have internal predecessors, (4991), 2520 states have call successors, (2520), 436 states have call predecessors, (2520), 436 states have return successors, (2556), 2349 states have call predecessors, (2556), 2520 states have call successors, (2556) [2022-11-23 13:47:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 10067 transitions. [2022-11-23 13:47:02,818 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 10067 transitions. Word has length 238 [2022-11-23 13:47:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:02,819 INFO L495 AbstractCegarLoop]: Abstraction has 6780 states and 10067 transitions. [2022-11-23 13:47:02,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 13:47:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 10067 transitions. [2022-11-23 13:47:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-23 13:47:02,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:02,837 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:47:02,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:47:02,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:47:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1583626280, now seen corresponding path program 1 times [2022-11-23 13:47:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:02,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314999924] [2022-11-23 13:47:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-11-23 13:47:03,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:03,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314999924] [2022-11-23 13:47:03,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314999924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:03,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:03,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:47:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366614133] [2022-11-23 13:47:03,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:03,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:47:03,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:47:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:03,352 INFO L87 Difference]: Start difference. First operand 6780 states and 10067 transitions. 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-23 13:47:07,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:07,739 INFO L93 Difference]: Finished difference Result 19762 states and 29366 transitions. [2022-11-23 13:47:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:47:07,739 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 248 [2022-11-23 13:47:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:07,863 INFO L225 Difference]: With dead ends: 19762 [2022-11-23 13:47:07,864 INFO L226 Difference]: Without dead ends: 13013 [2022-11-23 13:47:07,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:07,915 INFO L413 NwaCegarLoop]: 3310 mSDtfsCounter, 2690 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:07,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 5895 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 13:47:07,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2022-11-23 13:47:08,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13003. [2022-11-23 13:47:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13003 states, 7297 states have (on average 1.3031382760038372) internal successors, (9509), 7781 states have internal predecessors, (9509), 4853 states have call successors, (4853), 852 states have call predecessors, (4853), 852 states have return successors, (4962), 4503 states have call predecessors, (4962), 4853 states have call successors, (4962) [2022-11-23 13:47:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13003 states to 13003 states and 19324 transitions. [2022-11-23 13:47:08,826 INFO L78 Accepts]: Start accepts. Automaton has 13003 states and 19324 transitions. Word has length 248 [2022-11-23 13:47:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:08,828 INFO L495 AbstractCegarLoop]: Abstraction has 13003 states and 19324 transitions. [2022-11-23 13:47:08,829 INFO L496 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-23 13:47:08,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13003 states and 19324 transitions. [2022-11-23 13:47:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-23 13:47:08,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:08,848 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 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] [2022-11-23 13:47:08,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:47:08,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:47:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1764512402, now seen corresponding path program 1 times [2022-11-23 13:47:08,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:08,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506519863] [2022-11-23 13:47:08,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:08,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-23 13:47:09,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:09,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506519863] [2022-11-23 13:47:09,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506519863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:09,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:09,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:47:09,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067746684] [2022-11-23 13:47:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:09,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:47:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:47:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:09,241 INFO L87 Difference]: Start difference. First operand 13003 states and 19324 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-23 13:47:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:13,336 INFO L93 Difference]: Finished difference Result 32121 states and 47771 transitions. [2022-11-23 13:47:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:47:13,336 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 238 [2022-11-23 13:47:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:13,486 INFO L225 Difference]: With dead ends: 32121 [2022-11-23 13:47:13,486 INFO L226 Difference]: Without dead ends: 19149 [2022-11-23 13:47:13,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:13,578 INFO L413 NwaCegarLoop]: 4897 mSDtfsCounter, 2630 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:13,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 7433 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 13:47:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19149 states. [2022-11-23 13:47:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19149 to 19143. [2022-11-23 13:47:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 10753 states have (on average 1.3029852134288105) internal successors, (14011), 11473 states have internal predecessors, (14011), 7133 states have call successors, (7133), 1256 states have call predecessors, (7133), 1256 states have return successors, (7284), 6609 states have call predecessors, (7284), 7133 states have call successors, (7284) [2022-11-23 13:47:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 28428 transitions. [2022-11-23 13:47:14,912 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 28428 transitions. Word has length 238 [2022-11-23 13:47:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:14,914 INFO L495 AbstractCegarLoop]: Abstraction has 19143 states and 28428 transitions. [2022-11-23 13:47:14,914 INFO L496 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-23 13:47:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 28428 transitions. [2022-11-23 13:47:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-23 13:47:14,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:14,940 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:47:14,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:47:14,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:47:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1272291541, now seen corresponding path program 1 times [2022-11-23 13:47:14,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:14,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515813527] [2022-11-23 13:47:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:14,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-11-23 13:47:15,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515813527] [2022-11-23 13:47:15,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515813527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:15,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:15,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:47:15,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480377131] [2022-11-23 13:47:15,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:15,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:47:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:15,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:47:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:15,605 INFO L87 Difference]: Start difference. First operand 19143 states and 28428 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-23 13:47:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:20,099 INFO L93 Difference]: Finished difference Result 56423 states and 83743 transitions. [2022-11-23 13:47:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:47:20,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 328 [2022-11-23 13:47:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:20,384 INFO L225 Difference]: With dead ends: 56423 [2022-11-23 13:47:20,384 INFO L226 Difference]: Without dead ends: 37311 [2022-11-23 13:47:20,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:20,646 INFO L413 NwaCegarLoop]: 3530 mSDtfsCounter, 2843 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:20,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 6061 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 13:47:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2022-11-23 13:47:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37253. [2022-11-23 13:47:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37253 states, 20921 states have (on average 1.3041919602313465) internal successors, (27285), 22357 states have internal predecessors, (27285), 13855 states have call successors, (13855), 2476 states have call predecessors, (13855), 2476 states have return successors, (14152), 12799 states have call predecessors, (14152), 13855 states have call successors, (14152) [2022-11-23 13:47:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37253 states to 37253 states and 55292 transitions. [2022-11-23 13:47:23,438 INFO L78 Accepts]: Start accepts. Automaton has 37253 states and 55292 transitions. Word has length 328 [2022-11-23 13:47:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:23,442 INFO L495 AbstractCegarLoop]: Abstraction has 37253 states and 55292 transitions. [2022-11-23 13:47:23,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-23 13:47:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 37253 states and 55292 transitions. [2022-11-23 13:47:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-23 13:47:23,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:23,805 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:47:23,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:47:23,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:47:23,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1679197689, now seen corresponding path program 1 times [2022-11-23 13:47:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:23,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977064917] [2022-11-23 13:47:23,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:23,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2022-11-23 13:47:24,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:24,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977064917] [2022-11-23 13:47:24,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977064917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:24,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:24,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:47:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857633792] [2022-11-23 13:47:24,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:24,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:47:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:24,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:47:24,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:24,285 INFO L87 Difference]: Start difference. First operand 37253 states and 55292 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-23 13:47:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:31,114 INFO L93 Difference]: Finished difference Result 111661 states and 165724 transitions. [2022-11-23 13:47:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:47:31,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 350 [2022-11-23 13:47:31,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:31,932 INFO L225 Difference]: With dead ends: 111661 [2022-11-23 13:47:31,932 INFO L226 Difference]: Without dead ends: 74439 [2022-11-23 13:47:32,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:47:32,162 INFO L413 NwaCegarLoop]: 3747 mSDtfsCounter, 2870 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:32,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 6330 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 13:47:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74439 states. [2022-11-23 13:47:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74439 to 74389. [2022-11-23 13:47:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74389 states, 41765 states have (on average 1.30360349575003) internal successors, (54445), 44673 states have internal predecessors, (54445), 27671 states have call successors, (27671), 4952 states have call predecessors, (27671), 4952 states have return successors, (28265), 25523 states have call predecessors, (28265), 27671 states have call successors, (28265) [2022-11-23 13:47:37,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74389 states to 74389 states and 110381 transitions. [2022-11-23 13:47:37,911 INFO L78 Accepts]: Start accepts. Automaton has 74389 states and 110381 transitions. Word has length 350 [2022-11-23 13:47:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:37,912 INFO L495 AbstractCegarLoop]: Abstraction has 74389 states and 110381 transitions. [2022-11-23 13:47:37,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-23 13:47:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 74389 states and 110381 transitions. [2022-11-23 13:47:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-23 13:47:37,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:37,987 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:47:37,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:47:37,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:47:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 872115786, now seen corresponding path program 1 times [2022-11-23 13:47:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229533844] [2022-11-23 13:47:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-23 13:47:43,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:43,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229533844] [2022-11-23 13:47:43,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229533844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:43,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:43,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:47:43,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102288306] [2022-11-23 13:47:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:43,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:47:43,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:43,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:47:43,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:47:43,563 INFO L87 Difference]: Start difference. First operand 74389 states and 110381 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 13:48:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:00,918 INFO L93 Difference]: Finished difference Result 128959 states and 191594 transitions. [2022-11-23 13:48:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:48:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 300 [2022-11-23 13:48:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:01,902 INFO L225 Difference]: With dead ends: 128959 [2022-11-23 13:48:01,902 INFO L226 Difference]: Without dead ends: 128957 [2022-11-23 13:48:01,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:48:01,971 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 2210 mSDsluCounter, 11878 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 15379 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:01,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 15379 Invalid, 3336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-23 13:48:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128957 states.