./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P --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 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:47:41,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:47:41,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:47:41,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:47:41,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:47:41,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:47:41,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:47:41,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:47:41,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:47:41,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:47:41,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:47:41,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:47:41,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:47:41,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:47:41,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:47:41,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:47:41,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:47:41,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:47:41,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:47:41,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:47:41,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:47:41,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:47:41,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:47:41,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:47:41,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:47:41,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:47:41,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:47:41,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:47:41,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:47:41,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:47:41,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:47:41,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:47:41,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:47:41,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:47:41,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:47:41,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:47:41,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:47:41,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:47:41,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:47:41,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:47:41,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:47:41,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:47:41,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:47:41,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:47:41,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:47:41,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:47:41,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:47:41,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:47:41,934 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:47:41,935 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:47:41,935 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:47:41,935 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:47:41,936 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:47:41,936 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:47:41,936 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:47:41,937 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:47:41,937 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:47:41,937 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:47:41,938 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:47:41,938 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:47:41,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:47:41,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:47:41,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:47:41,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:47:41,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:47:41,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:47:41,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:47:41,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:47:41,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:47:41,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:47:41,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:47:41,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:47:41,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:47:41,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:47:41,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:47:41,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:47:41,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:47:41,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:47:41,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:47:41,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:47:41,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa [2021-11-21 00:47:42,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:47:42,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:47:42,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:47:42,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:47:42,280 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:47:42,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-21 00:47:42,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/data/d1dc356b0/6a171bfb14e24f3ba330308e21b57d07/FLAGc9f085ed5 [2021-11-21 00:47:43,716 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:47:43,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-21 00:47:43,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/data/d1dc356b0/6a171bfb14e24f3ba330308e21b57d07/FLAGc9f085ed5 [2021-11-21 00:47:44,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/data/d1dc356b0/6a171bfb14e24f3ba330308e21b57d07 [2021-11-21 00:47:44,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:47:44,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:47:44,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:47:44,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:47:44,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:47:44,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:44" (1/1) ... [2021-11-21 00:47:44,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c25ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:44, skipping insertion in model container [2021-11-21 00:47:44,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:44" (1/1) ... [2021-11-21 00:47:44,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:47:44,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:47:50,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2021-11-21 00:47:50,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2021-11-21 00:47:50,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:47:50,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:47:51,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2021-11-21 00:47:51,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2021-11-21 00:47:51,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:47:52,049 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:47:52,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52 WrapperNode [2021-11-21 00:47:52,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:47:52,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:47:52,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:47:52,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:47:52,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:52,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:52,825 INFO L137 Inliner]: procedures = 661, calls = 4743, calls flagged for inlining = 357, calls inlined = 344, statements flattened = 10404 [2021-11-21 00:47:52,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:47:52,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:47:52,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:47:52,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:47:52,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:52,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:52,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:52,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:53,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:53,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:53,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:53,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:47:53,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:47:53,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:47:53,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:47:53,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (1/1) ... [2021-11-21 00:47:53,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:47:53,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:53,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:47:53,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad8e4e2a-9dae-4a63-a106-71bdfe1add95/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:47:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:47:53,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:47:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:47:53,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:47:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2021-11-21 00:47:53,626 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2021-11-21 00:47:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:47:53,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:47:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2021-11-21 00:47:53,627 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2021-11-21 00:47:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:47:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:47:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-21 00:47:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-21 00:47:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2021-11-21 00:47:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2021-11-21 00:47:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2021-11-21 00:47:53,629 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2021-11-21 00:47:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2021-11-21 00:47:53,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2021-11-21 00:47:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-21 00:47:53,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-21 00:47:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2021-11-21 00:47:53,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2021-11-21 00:47:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2021-11-21 00:47:53,630 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2021-11-21 00:47:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:47:53,631 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:47:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2021-11-21 00:47:53,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2021-11-21 00:47:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-21 00:47:53,632 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-21 00:47:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2021-11-21 00:47:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2021-11-21 00:47:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2021-11-21 00:47:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2021-11-21 00:47:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:47:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:47:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:47:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:47:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:47:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:47:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:47:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:47:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2021-11-21 00:47:53,636 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2021-11-21 00:47:53,636 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:47:53,637 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:47:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:47:53,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:47:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:47:53,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:47:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2021-11-21 00:47:53,639 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2021-11-21 00:47:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:47:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:47:53,639 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:47:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-21 00:47:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-21 00:47:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-21 00:47:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-21 00:47:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2021-11-21 00:47:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2021-11-21 00:47:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2021-11-21 00:47:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2021-11-21 00:47:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2021-11-21 00:47:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2021-11-21 00:47:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2021-11-21 00:47:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2021-11-21 00:47:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:47:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:47:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2021-11-21 00:47:53,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2021-11-21 00:47:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2021-11-21 00:47:53,643 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2021-11-21 00:47:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2021-11-21 00:47:53,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2021-11-21 00:47:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2021-11-21 00:47:53,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2021-11-21 00:47:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:47:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2021-11-21 00:47:53,645 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2021-11-21 00:47:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:47:53,645 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:47:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:47:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2021-11-21 00:47:53,646 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2021-11-21 00:47:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:47:53,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:47:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2021-11-21 00:47:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2021-11-21 00:47:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2021-11-21 00:47:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2021-11-21 00:47:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:47:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:47:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:47:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2021-11-21 00:47:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2021-11-21 00:47:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:47:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:47:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:47:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:47:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2021-11-21 00:47:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2021-11-21 00:47:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:47:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:47:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-21 00:47:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-21 00:47:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:47:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:47:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:47:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:47:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2021-11-21 00:47:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2021-11-21 00:47:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-21 00:47:53,657 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-21 00:47:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2021-11-21 00:47:53,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2021-11-21 00:47:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:47:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:47:53,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:47:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:47:53,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:47:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:47:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2021-11-21 00:47:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2021-11-21 00:47:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-21 00:47:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-21 00:47:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:47:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:47:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:47:53,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:47:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:47:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:47:53,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:47:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2021-11-21 00:47:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2021-11-21 00:47:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2021-11-21 00:47:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2021-11-21 00:47:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:47:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:47:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-21 00:47:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-21 00:47:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:47:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:47:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:47:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:47:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2021-11-21 00:47:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2021-11-21 00:47:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2021-11-21 00:47:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2021-11-21 00:47:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:47:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:47:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2021-11-21 00:47:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2021-11-21 00:47:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:47:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:47:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-21 00:47:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-21 00:47:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-21 00:47:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-21 00:47:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2021-11-21 00:47:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2021-11-21 00:47:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-21 00:47:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-21 00:47:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-21 00:47:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-21 00:47:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:47:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:47:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2021-11-21 00:47:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2021-11-21 00:47:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2021-11-21 00:47:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2021-11-21 00:47:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2021-11-21 00:47:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2021-11-21 00:47:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:47:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:47:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:47:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:47:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2021-11-21 00:47:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2021-11-21 00:47:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-21 00:47:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-21 00:47:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2021-11-21 00:47:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2021-11-21 00:47:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2021-11-21 00:47:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2021-11-21 00:47:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2021-11-21 00:47:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2021-11-21 00:47:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2021-11-21 00:47:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2021-11-21 00:47:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2021-11-21 00:47:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2021-11-21 00:47:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:47:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:47:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2021-11-21 00:47:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2021-11-21 00:47:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:47:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:47:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2021-11-21 00:47:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2021-11-21 00:47:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:47:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:47:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-21 00:47:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-21 00:47:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2021-11-21 00:47:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2021-11-21 00:47:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2021-11-21 00:47:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2021-11-21 00:47:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2021-11-21 00:47:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2021-11-21 00:47:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:47:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:47:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2021-11-21 00:47:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2021-11-21 00:47:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:47:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:47:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-21 00:47:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-21 00:47:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2021-11-21 00:47:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2021-11-21 00:47:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2021-11-21 00:47:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2021-11-21 00:47:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:47:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:47:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:47:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:47:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:47:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:47:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:47:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2021-11-21 00:47:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2021-11-21 00:47:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:47:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2021-11-21 00:47:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2021-11-21 00:47:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-21 00:47:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-21 00:47:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2021-11-21 00:47:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2021-11-21 00:47:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:47:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:47:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2021-11-21 00:47:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2021-11-21 00:47:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-21 00:47:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-21 00:47:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:47:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2021-11-21 00:47:53,694 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2021-11-21 00:47:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 00:47:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 00:47:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-21 00:47:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-21 00:47:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:47:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:47:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:47:53,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:47:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:47:53,696 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:47:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2021-11-21 00:47:53,696 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2021-11-21 00:47:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:47:53,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:47:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2021-11-21 00:47:53,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2021-11-21 00:47:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-21 00:47:53,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-21 00:47:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2021-11-21 00:47:53,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2021-11-21 00:47:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2021-11-21 00:47:53,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2021-11-21 00:47:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:47:53,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:47:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2021-11-21 00:47:53,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2021-11-21 00:47:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2021-11-21 00:47:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2021-11-21 00:47:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:47:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:47:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2021-11-21 00:47:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2021-11-21 00:47:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:47:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:47:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2021-11-21 00:47:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2021-11-21 00:47:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2021-11-21 00:47:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2021-11-21 00:47:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2021-11-21 00:47:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2021-11-21 00:47:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-21 00:47:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-21 00:47:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:47:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:47:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:47:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2021-11-21 00:47:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2021-11-21 00:47:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:47:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:47:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2021-11-21 00:47:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2021-11-21 00:47:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2021-11-21 00:47:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2021-11-21 00:47:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2021-11-21 00:47:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2021-11-21 00:47:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2021-11-21 00:47:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2021-11-21 00:47:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2021-11-21 00:47:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2021-11-21 00:47:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2021-11-21 00:47:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2021-11-21 00:47:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:47:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:47:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2021-11-21 00:47:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2021-11-21 00:47:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2021-11-21 00:47:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2021-11-21 00:47:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2021-11-21 00:47:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2021-11-21 00:47:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2021-11-21 00:47:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2021-11-21 00:47:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_95 [2021-11-21 00:47:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_95 [2021-11-21 00:47:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2021-11-21 00:47:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2021-11-21 00:47:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-21 00:47:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-21 00:47:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2021-11-21 00:47:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2021-11-21 00:47:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2021-11-21 00:47:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2021-11-21 00:47:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2021-11-21 00:47:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2021-11-21 00:47:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2021-11-21 00:47:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2021-11-21 00:47:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:47:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:47:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:47:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:47:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2021-11-21 00:47:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2021-11-21 00:47:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2021-11-21 00:47:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2021-11-21 00:47:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2021-11-21 00:47:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2021-11-21 00:47:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-21 00:47:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-21 00:47:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 00:47:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 00:47:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2021-11-21 00:47:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2021-11-21 00:47:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:47:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:47:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:47:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2021-11-21 00:47:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2021-11-21 00:47:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-21 00:47:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-21 00:47:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2021-11-21 00:47:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2021-11-21 00:47:55,213 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:47:55,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:47:59,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:48:17,932 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:48:18,076 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:48:21,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:48:21,032 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 00:48:21,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:48:21 BoogieIcfgContainer [2021-11-21 00:48:21,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:48:21,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:48:21,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:48:21,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:48:21,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:47:44" (1/3) ... [2021-11-21 00:48:21,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7403fd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:48:21, skipping insertion in model container [2021-11-21 00:48:21,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:52" (2/3) ... [2021-11-21 00:48:21,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7403fd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:48:21, skipping insertion in model container [2021-11-21 00:48:21,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:48:21" (3/3) ... [2021-11-21 00:48:21,048 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-21 00:48:21,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:48:21,054 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:48:21,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:48:21,134 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:48:21,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:48:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 2318 states, 1382 states have (on average 1.3140376266280753) internal successors, (1816), 1447 states have internal predecessors, (1816), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) [2021-11-21 00:48:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-21 00:48:21,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:21,263 INFO L514 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:21,264 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:48:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1688980558, now seen corresponding path program 1 times [2021-11-21 00:48:21,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:21,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747659982] [2021-11-21 00:48:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:21,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2021-11-21 00:48:22,422 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:22,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747659982] [2021-11-21 00:48:22,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747659982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:22,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:22,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:48:22,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567702433] [2021-11-21 00:48:22,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:22,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:22,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:48:22,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:22,490 INFO L87 Difference]: Start difference. First operand has 2318 states, 1382 states have (on average 1.3140376266280753) internal successors, (1816), 1447 states have internal predecessors, (1816), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:48:26,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:48:34,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:48:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:35,118 INFO L93 Difference]: Finished difference Result 6367 states and 9218 transitions. [2021-11-21 00:48:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:35,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 244 [2021-11-21 00:48:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:35,180 INFO L225 Difference]: With dead ends: 6367 [2021-11-21 00:48:35,180 INFO L226 Difference]: Without dead ends: 4031 [2021-11-21 00:48:35,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:35,202 INFO L933 BasicCegarLoop]: 3373 mSDtfsCounter, 2532 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 6125 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:35,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2535 Valid, 6125 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1098 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2021-11-21 00:48:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4031 states. [2021-11-21 00:48:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4031 to 4028. [2021-11-21 00:48:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2421 states have (on average 1.3093762907889301) internal successors, (3170), 2531 states have internal predecessors, (3170), 1290 states have call successors, (1290), 316 states have call predecessors, (1290), 316 states have return successors, (1293), 1270 states have call predecessors, (1293), 1290 states have call successors, (1293) [2021-11-21 00:48:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5753 transitions. [2021-11-21 00:48:35,525 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5753 transitions. Word has length 244 [2021-11-21 00:48:35,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:35,526 INFO L470 AbstractCegarLoop]: Abstraction has 4028 states and 5753 transitions. [2021-11-21 00:48:35,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:48:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5753 transitions. [2021-11-21 00:48:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-21 00:48:35,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:35,540 INFO L514 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:35,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:48:35,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:48:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:35,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1983413453, now seen corresponding path program 1 times [2021-11-21 00:48:35,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:35,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670253686] [2021-11-21 00:48:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:35,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2021-11-21 00:48:35,902 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670253686] [2021-11-21 00:48:35,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670253686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:35,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:35,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:48:35,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070855414] [2021-11-21 00:48:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:35,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:35,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:48:35,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:35,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:35,914 INFO L87 Difference]: Start difference. First operand 4028 states and 5753 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:48:38,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:48:48,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:48:48,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:48,489 INFO L93 Difference]: Finished difference Result 10860 states and 15352 transitions. [2021-11-21 00:48:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:48,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 247 [2021-11-21 00:48:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:48,562 INFO L225 Difference]: With dead ends: 10860 [2021-11-21 00:48:48,563 INFO L226 Difference]: Without dead ends: 6871 [2021-11-21 00:48:48,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:48,586 INFO L933 BasicCegarLoop]: 3309 mSDtfsCounter, 2445 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 5993 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:48,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2448 Valid, 5993 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1100 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-11-21 00:48:48,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2021-11-21 00:48:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6867. [2021-11-21 00:48:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 4119 states have (on average 1.29278951201748) internal successors, (5325), 4309 states have internal predecessors, (5325), 2153 states have call successors, (2153), 594 states have call predecessors, (2153), 594 states have return successors, (2166), 2116 states have call predecessors, (2166), 2153 states have call successors, (2166) [2021-11-21 00:48:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 9644 transitions. [2021-11-21 00:48:48,987 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 9644 transitions. Word has length 247 [2021-11-21 00:48:48,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:48,989 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 9644 transitions. [2021-11-21 00:48:48,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:48:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 9644 transitions. [2021-11-21 00:48:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-21 00:48:48,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:49,000 INFO L514 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:49,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:48:49,000 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:48:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1253946095, now seen corresponding path program 1 times [2021-11-21 00:48:49,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:49,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213601394] [2021-11-21 00:48:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:49,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-21 00:48:49,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:49,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213601394] [2021-11-21 00:48:49,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213601394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:49,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:49,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:48:49,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925642058] [2021-11-21 00:48:49,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:49,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:49,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:48:49,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:49,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:49,540 INFO L87 Difference]: Start difference. First operand 6867 states and 9644 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:48:52,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:48:59,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:01,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:01,672 INFO L93 Difference]: Finished difference Result 19440 states and 27304 transitions. [2021-11-21 00:49:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:01,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 258 [2021-11-21 00:49:01,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:01,787 INFO L225 Difference]: With dead ends: 19440 [2021-11-21 00:49:01,787 INFO L226 Difference]: Without dead ends: 12612 [2021-11-21 00:49:01,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:01,830 INFO L933 BasicCegarLoop]: 4028 mSDtfsCounter, 3101 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 6762 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:01,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 6762 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1193 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2021-11-21 00:49:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2021-11-21 00:49:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 12598. [2021-11-21 00:49:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12598 states, 7535 states have (on average 1.2913072329130724) internal successors, (9730), 7885 states have internal predecessors, (9730), 3957 states have call successors, (3957), 1101 states have call predecessors, (3957), 1105 states have return successors, (4014), 3883 states have call predecessors, (4014), 3957 states have call successors, (4014) [2021-11-21 00:49:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12598 states to 12598 states and 17701 transitions. [2021-11-21 00:49:02,634 INFO L78 Accepts]: Start accepts. Automaton has 12598 states and 17701 transitions. Word has length 258 [2021-11-21 00:49:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:02,635 INFO L470 AbstractCegarLoop]: Abstraction has 12598 states and 17701 transitions. [2021-11-21 00:49:02,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:49:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 12598 states and 17701 transitions. [2021-11-21 00:49:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-21 00:49:02,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:02,653 INFO L514 BasicCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2021-11-21 00:49:02,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:49:02,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1330982490, now seen corresponding path program 1 times [2021-11-21 00:49:02,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:02,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868093873] [2021-11-21 00:49:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2021-11-21 00:49:03,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:03,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868093873] [2021-11-21 00:49:03,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868093873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:03,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:03,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:49:03,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479740544] [2021-11-21 00:49:03,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:03,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:03,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:03,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:03,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:03,055 INFO L87 Difference]: Start difference. First operand 12598 states and 17701 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:49:06,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:12,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:15,323 INFO L93 Difference]: Finished difference Result 37684 states and 52946 transitions. [2021-11-21 00:49:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 279 [2021-11-21 00:49:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:15,644 INFO L225 Difference]: With dead ends: 37684 [2021-11-21 00:49:15,645 INFO L226 Difference]: Without dead ends: 25125 [2021-11-21 00:49:15,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:15,703 INFO L933 BasicCegarLoop]: 4114 mSDtfsCounter, 3173 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 6848 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:15,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3179 Valid, 6848 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1200 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2021-11-21 00:49:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25125 states. [2021-11-21 00:49:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25125 to 25103. [2021-11-21 00:49:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25103 states, 15017 states have (on average 1.2912698941199974) internal successors, (19391), 15729 states have internal predecessors, (19391), 7879 states have call successors, (7879), 2198 states have call predecessors, (7879), 2206 states have return successors, (7996), 7719 states have call predecessors, (7996), 7879 states have call successors, (7996) [2021-11-21 00:49:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25103 states to 25103 states and 35266 transitions. [2021-11-21 00:49:17,122 INFO L78 Accepts]: Start accepts. Automaton has 25103 states and 35266 transitions. Word has length 279 [2021-11-21 00:49:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:17,123 INFO L470 AbstractCegarLoop]: Abstraction has 25103 states and 35266 transitions. [2021-11-21 00:49:17,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:49:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states and 35266 transitions. [2021-11-21 00:49:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-21 00:49:17,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:17,145 INFO L514 BasicCegarLoop]: trace histogram [22, 19, 19, 19, 19, 19, 19, 3, 3, 3, 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] [2021-11-21 00:49:17,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:49:17,146 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash -741830505, now seen corresponding path program 1 times [2021-11-21 00:49:17,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:17,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315817059] [2021-11-21 00:49:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:17,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1506 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2021-11-21 00:49:17,496 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:17,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315817059] [2021-11-21 00:49:17,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315817059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:17,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:17,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:49:17,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670399013] [2021-11-21 00:49:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:17,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:17,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:17,499 INFO L87 Difference]: Start difference. First operand 25103 states and 35266 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 00:49:20,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:22,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:27,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:30,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:31,067 INFO L93 Difference]: Finished difference Result 50525 states and 70867 transitions. [2021-11-21 00:49:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 295 [2021-11-21 00:49:31,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:31,222 INFO L225 Difference]: With dead ends: 50525 [2021-11-21 00:49:31,222 INFO L226 Difference]: Without dead ends: 25461 [2021-11-21 00:49:31,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:31,308 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 333 mSDsluCounter, 3217 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:31,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 5503 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1059 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2021-11-21 00:49:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25461 states. [2021-11-21 00:49:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25461 to 25461. [2021-11-21 00:49:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25461 states, 15238 states have (on average 1.2891455571597323) internal successors, (19644), 15957 states have internal predecessors, (19644), 7947 states have call successors, (7947), 2267 states have call predecessors, (7947), 2275 states have return successors, (8064), 7787 states have call predecessors, (8064), 7947 states have call successors, (8064) [2021-11-21 00:49:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25461 states to 25461 states and 35655 transitions. [2021-11-21 00:49:33,009 INFO L78 Accepts]: Start accepts. Automaton has 25461 states and 35655 transitions. Word has length 295 [2021-11-21 00:49:33,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:33,010 INFO L470 AbstractCegarLoop]: Abstraction has 25461 states and 35655 transitions. [2021-11-21 00:49:33,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 00:49:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 25461 states and 35655 transitions. [2021-11-21 00:49:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-21 00:49:33,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:33,027 INFO L514 BasicCegarLoop]: trace histogram [24, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:33,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:49:33,027 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:33,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2036800215, now seen corresponding path program 1 times [2021-11-21 00:49:33,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:33,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485310994] [2021-11-21 00:49:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:33,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:49:33,551 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:33,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485310994] [2021-11-21 00:49:33,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485310994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:33,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:33,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:49:33,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868971138] [2021-11-21 00:49:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:33,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:33,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:33,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:33,555 INFO L87 Difference]: Start difference. First operand 25461 states and 35655 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:49:36,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:44,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:46,794 INFO L93 Difference]: Finished difference Result 60127 states and 84122 transitions. [2021-11-21 00:49:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:46,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 291 [2021-11-21 00:49:46,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:47,034 INFO L225 Difference]: With dead ends: 60127 [2021-11-21 00:49:47,034 INFO L226 Difference]: Without dead ends: 34951 [2021-11-21 00:49:47,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:47,134 INFO L933 BasicCegarLoop]: 4166 mSDtfsCounter, 2474 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 6860 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:47,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2477 Valid, 6860 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2021-11-21 00:49:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34951 states. [2021-11-21 00:49:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34951 to 34941. [2021-11-21 00:49:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34941 states, 20918 states have (on average 1.2872167511234343) internal successors, (26926), 21899 states have internal predecessors, (26926), 10815 states have call successors, (10815), 3191 states have call predecessors, (10815), 3207 states have return successors, (10964), 10613 states have call predecessors, (10964), 10815 states have call successors, (10964) [2021-11-21 00:49:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34941 states to 34941 states and 48705 transitions. [2021-11-21 00:49:48,960 INFO L78 Accepts]: Start accepts. Automaton has 34941 states and 48705 transitions. Word has length 291 [2021-11-21 00:49:48,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:48,961 INFO L470 AbstractCegarLoop]: Abstraction has 34941 states and 48705 transitions. [2021-11-21 00:49:48,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:49:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 34941 states and 48705 transitions. [2021-11-21 00:49:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-21 00:49:48,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:48,993 INFO L514 BasicCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 5, 5, 4, 4, 4, 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] [2021-11-21 00:49:48,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:49:48,993 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:48,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash 283828016, now seen corresponding path program 1 times [2021-11-21 00:49:48,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183883761] [2021-11-21 00:49:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:48,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2021-11-21 00:49:50,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183883761] [2021-11-21 00:49:50,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183883761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:50,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:50,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:49:50,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858541119] [2021-11-21 00:49:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:50,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:49:50,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:49:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:49:50,318 INFO L87 Difference]: Start difference. First operand 34941 states and 48705 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-21 00:49:54,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:56,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:58,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:00,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:02,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:17,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:25,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:27,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:28,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:50:28,524 INFO L93 Difference]: Finished difference Result 65127 states and 90775 transitions. [2021-11-21 00:50:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:50:28,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 336 [2021-11-21 00:50:28,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:50:28,813 INFO L225 Difference]: With dead ends: 65127 [2021-11-21 00:50:28,813 INFO L226 Difference]: Without dead ends: 65125 [2021-11-21 00:50:28,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:50:28,843 INFO L933 BasicCegarLoop]: 3470 mSDtfsCounter, 2818 mSDsluCounter, 13930 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 15236 SdHoareTripleChecker+Invalid, 4090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:50:28,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2819 Valid, 15236 Invalid, 4090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 4080 Invalid, 6 Unknown, 0 Unchecked, 35.7s Time] [2021-11-21 00:50:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65125 states. [2021-11-21 00:50:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65125 to 64932. [2021-11-21 00:50:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64932 states, 39027 states have (on average 1.288108232761934) internal successors, (50271), 40827 states have internal predecessors, (50271), 19884 states have call successors, (19884), 6102 states have call predecessors, (19884), 6020 states have return successors, (20354), 19265 states have call predecessors, (20354), 19884 states have call successors, (20354) [2021-11-21 00:50:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64932 states to 64932 states and 90509 transitions. [2021-11-21 00:50:32,898 INFO L78 Accepts]: Start accepts. Automaton has 64932 states and 90509 transitions. Word has length 336 [2021-11-21 00:50:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:50:32,900 INFO L470 AbstractCegarLoop]: Abstraction has 64932 states and 90509 transitions. [2021-11-21 00:50:32,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-21 00:50:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 64932 states and 90509 transitions. [2021-11-21 00:50:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-11-21 00:50:33,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:50:33,323 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 7, 7, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:50:33,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:50:33,323 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:50:33,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:50:33,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1016726523, now seen corresponding path program 1 times [2021-11-21 00:50:33,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:50:33,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228024865] [2021-11-21 00:50:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:50:33,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:50:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:50:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2021-11-21 00:50:33,708 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:50:33,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228024865] [2021-11-21 00:50:33,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228024865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:50:33,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:50:33,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:50:33,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745668373] [2021-11-21 00:50:33,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:50:33,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:50:33,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:50:33,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:50:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:50:33,711 INFO L87 Difference]: Start difference. First operand 64932 states and 90509 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-21 00:50:36,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:44,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:50:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:50:51,133 INFO L93 Difference]: Finished difference Result 192590 states and 268674 transitions. [2021-11-21 00:50:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:50:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 394 [2021-11-21 00:50:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:50:52,074 INFO L225 Difference]: With dead ends: 192590 [2021-11-21 00:50:52,074 INFO L226 Difference]: Without dead ends: 127697 [2021-11-21 00:50:52,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:50:52,326 INFO L933 BasicCegarLoop]: 3475 mSDtfsCounter, 3181 mSDsluCounter, 3237 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:50:52,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3184 Valid, 6200 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1053 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2021-11-21 00:50:52,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127697 states. [2021-11-21 00:50:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127697 to 127555. [2021-11-21 00:50:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127555 states, 76722 states have (on average 1.2878053231146216) internal successors, (98803), 80294 states have internal predecessors, (98803), 38956 states have call successors, (38956), 12024 states have call predecessors, (38956), 11876 states have return successors, (40176), 37704 states have call predecessors, (40176), 38956 states have call successors, (40176) [2021-11-21 00:51:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127555 states to 127555 states and 177935 transitions. [2021-11-21 00:51:00,306 INFO L78 Accepts]: Start accepts. Automaton has 127555 states and 177935 transitions. Word has length 394 [2021-11-21 00:51:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:51:00,307 INFO L470 AbstractCegarLoop]: Abstraction has 127555 states and 177935 transitions. [2021-11-21 00:51:00,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-21 00:51:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 127555 states and 177935 transitions. [2021-11-21 00:51:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-21 00:51:00,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:51:00,389 INFO L514 BasicCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 10, 10, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:51:00,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:51:00,390 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:51:00,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:51:00,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1636204247, now seen corresponding path program 1 times [2021-11-21 00:51:00,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:51:00,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785279109] [2021-11-21 00:51:00,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:51:00,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:51:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:51:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2021-11-21 00:51:01,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:51:01,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785279109] [2021-11-21 00:51:01,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785279109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:51:01,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:51:01,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:51:01,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112323207] [2021-11-21 00:51:01,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:51:01,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:51:01,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:51:01,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:51:01,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:51:01,351 INFO L87 Difference]: Start difference. First operand 127555 states and 177935 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-21 00:51:04,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:51:12,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:51:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:51:20,381 INFO L93 Difference]: Finished difference Result 292251 states and 406841 transitions. [2021-11-21 00:51:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:51:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 421 [2021-11-21 00:51:20,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:51:21,351 INFO L225 Difference]: With dead ends: 292251 [2021-11-21 00:51:21,351 INFO L226 Difference]: Without dead ends: 164781 [2021-11-21 00:51:21,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:51:21,683 INFO L933 BasicCegarLoop]: 3656 mSDtfsCounter, 3194 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:51:21,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3200 Valid, 5840 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2021-11-21 00:51:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164781 states.