./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/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_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/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-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/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_5c2e2bd2-13fa-4f97-b424-509f7493148d/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 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:05:34,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:05:34,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:05:34,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:05:34,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:05:34,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:05:34,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:05:34,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:05:34,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:05:34,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:05:34,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:05:34,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:05:34,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:05:34,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:05:34,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:05:34,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:05:34,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:05:34,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:05:34,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:05:34,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:05:34,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:05:34,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:05:34,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:05:34,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:05:34,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:05:34,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:05:34,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:05:34,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:05:34,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:05:34,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:05:34,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:05:34,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:05:34,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:05:34,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:05:34,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:05:34,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:05:34,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:05:34,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:05:34,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:05:34,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:05:34,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:05:34,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:05:34,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:05:34,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:05:34,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:05:34,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:05:34,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:05:34,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:05:34,251 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:05:34,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:05:34,252 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:05:34,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:05:34,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:05:34,254 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:05:34,254 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:05:34,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:05:34,254 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:05:34,255 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:05:34,255 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:05:34,255 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:05:34,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:05:34,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:05:34,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:05:34,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:05:34,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:05:34,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:05:34,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:05:34,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:05:34,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:05:34,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:05:34,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:05:34,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:05:34,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:05:34,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:05:34,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:05:34,259 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:05:34,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:05:34,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:05:34,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:05:34,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:05:34,261 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_5c2e2bd2-13fa-4f97-b424-509f7493148d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2021-11-21 00:05:34,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:05:34,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:05:34,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:05:34,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:05:34,606 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:05:34,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-21 00:05:34,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/data/35210877c/fff83e0ec19847798e88882cacac8dcb/FLAGf92bce418 [2021-11-21 00:05:35,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:05:35,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-21 00:05:35,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/data/35210877c/fff83e0ec19847798e88882cacac8dcb/FLAGf92bce418 [2021-11-21 00:05:36,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/data/35210877c/fff83e0ec19847798e88882cacac8dcb [2021-11-21 00:05:36,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:05:36,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:05:36,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:36,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:05:36,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:05:36,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:36" (1/1) ... [2021-11-21 00:05:36,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776d6ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:36, skipping insertion in model container [2021-11-21 00:05:36,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:36" (1/1) ... [2021-11-21 00:05:36,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:05:36,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:05:39,173 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_5c2e2bd2-13fa-4f97-b424-509f7493148d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-21 00:05:39,176 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_5c2e2bd2-13fa-4f97-b424-509f7493148d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-21 00:05:39,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:39,255 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:05:39,622 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_5c2e2bd2-13fa-4f97-b424-509f7493148d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-21 00:05:39,623 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_5c2e2bd2-13fa-4f97-b424-509f7493148d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-21 00:05:39,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:39,883 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:05:39,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39 WrapperNode [2021-11-21 00:05:39,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:39,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:39,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:05:39,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:05:39,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,259 INFO L137 Inliner]: procedures = 434, calls = 2034, calls flagged for inlining = 218, calls inlined = 203, statements flattened = 4923 [2021-11-21 00:05:40,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:40,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:05:40,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:05:40,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:05:40,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:05:40,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:05:40,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:05:40,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:05:40,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (1/1) ... [2021-11-21 00:05:40,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:05:40,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:40,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:05:40,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:05:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 00:05:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 00:05:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:05:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:05:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:05:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:05:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-21 00:05:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-21 00:05:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:05:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:05:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:05:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:05:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2021-11-21 00:05:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2021-11-21 00:05:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2021-11-21 00:05:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2021-11-21 00:05:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:05:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:05:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:05:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:05:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-21 00:05:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-21 00:05:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 00:05:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 00:05:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2021-11-21 00:05:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2021-11-21 00:05:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:05:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:05:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:05:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:05:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:05:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:05:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-21 00:05:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-21 00:05:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:05:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:05:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:05:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:05:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-11-21 00:05:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-11-21 00:05:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:05:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:05:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:05:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:05:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:05:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 00:05:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 00:05:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:05:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:05:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:05:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:05:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:05:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:05:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:05:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:05:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:05:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:05:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:05:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:05:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:05:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-21 00:05:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-21 00:05:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:05:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:05:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2021-11-21 00:05:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2021-11-21 00:05:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:05:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:05:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:05:40,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:05:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:05:40,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:05:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:05:40,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:05:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2021-11-21 00:05:40,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2021-11-21 00:05:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:05:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:05:40,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:05:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:05:40,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:05:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:05:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-21 00:05:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-21 00:05:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:05:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:05:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:05:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:05:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:05:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:05:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:05:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:05:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:05:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:05:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:05:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:05:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:05:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:05:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:05:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:05:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:05:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:05:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:05:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:05:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2021-11-21 00:05:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2021-11-21 00:05:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2021-11-21 00:05:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2021-11-21 00:05:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-21 00:05:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-21 00:05:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:05:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:05:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:05:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:05:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-21 00:05:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-21 00:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 00:05:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 00:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:05:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-21 00:05:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-21 00:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:05:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:05:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-21 00:05:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-21 00:05:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:05:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:05:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:05:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:05:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:05:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:05:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:05:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:05:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-21 00:05:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-21 00:05:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2021-11-21 00:05:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2021-11-21 00:05:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:05:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:05:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:05:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-21 00:05:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-21 00:05:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:05:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:05:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-21 00:05:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-21 00:05:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-21 00:05:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-21 00:05:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:05:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:05:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:05:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:05:40,628 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 00:05:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 00:05:40,628 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:05:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:05:40,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:05:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:05:40,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:05:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-11-21 00:05:40,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-11-21 00:05:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-21 00:05:40,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-21 00:05:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:05:40,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:05:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:05:40,630 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:05:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-21 00:05:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-21 00:05:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:05:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:05:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-21 00:05:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-21 00:05:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:05:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:05:40,632 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2021-11-21 00:05:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2021-11-21 00:05:40,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:05:40,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:05:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:05:41,431 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:05:41,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:05:41,844 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:05:44,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:05:45,050 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:05:46,314 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:05:46,314 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 00:05:46,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:46 BoogieIcfgContainer [2021-11-21 00:05:46,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:05:46,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:05:46,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:05:46,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:05:46,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:05:36" (1/3) ... [2021-11-21 00:05:46,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69599c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:46, skipping insertion in model container [2021-11-21 00:05:46,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:39" (2/3) ... [2021-11-21 00:05:46,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69599c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:46, skipping insertion in model container [2021-11-21 00:05:46,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:46" (3/3) ... [2021-11-21 00:05:46,329 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-21 00:05:46,334 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:05:46,334 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:05:46,395 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:05:46,401 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 00:05:46,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:05:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 1200 states, 675 states have (on average 1.2874074074074073) internal successors, (869), 697 states have internal predecessors, (869), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) [2021-11-21 00:05:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-21 00:05:46,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:46,489 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:46,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:46,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1297958084, now seen corresponding path program 1 times [2021-11-21 00:05:46,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:46,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375992548] [2021-11-21 00:05:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:46,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-11-21 00:05:47,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:47,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375992548] [2021-11-21 00:05:47,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375992548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:47,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:47,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:47,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547410122] [2021-11-21 00:05:47,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:47,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:47,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:47,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:47,365 INFO L87 Difference]: Start difference. First operand has 1200 states, 675 states have (on average 1.2874074074074073) internal successors, (869), 697 states have internal predecessors, (869), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 00:05:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:49,335 INFO L93 Difference]: Finished difference Result 3342 states and 4880 transitions. [2021-11-21 00:05:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 138 [2021-11-21 00:05:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:49,381 INFO L225 Difference]: With dead ends: 3342 [2021-11-21 00:05:49,382 INFO L226 Difference]: Without dead ends: 2105 [2021-11-21 00:05:49,397 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 00:05:49,400 INFO L933 BasicCegarLoop]: 1871 mSDtfsCounter, 1434 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 3310 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:49,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1434 Valid, 3310 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 00:05:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-11-21 00:05:49,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2101. [2021-11-21 00:05:49,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 1190 states have (on average 1.2739495798319327) internal successors, (1516), 1227 states have internal predecessors, (1516), 751 states have call successors, (751), 160 states have call predecessors, (751), 159 states have return successors, (756), 739 states have call predecessors, (756), 751 states have call successors, (756) [2021-11-21 00:05:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 3023 transitions. [2021-11-21 00:05:49,693 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 3023 transitions. Word has length 138 [2021-11-21 00:05:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:49,694 INFO L470 AbstractCegarLoop]: Abstraction has 2101 states and 3023 transitions. [2021-11-21 00:05:49,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 00:05:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 3023 transitions. [2021-11-21 00:05:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-21 00:05:49,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:49,707 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:49,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:05:49,708 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash -405504832, now seen corresponding path program 1 times [2021-11-21 00:05:49,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207751406] [2021-11-21 00:05:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:49,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-21 00:05:50,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:50,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207751406] [2021-11-21 00:05:50,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207751406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:50,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:50,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:50,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576945296] [2021-11-21 00:05:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:50,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:50,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:50,099 INFO L87 Difference]: Start difference. First operand 2101 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:05:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:51,931 INFO L93 Difference]: Finished difference Result 5984 states and 8561 transitions. [2021-11-21 00:05:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2021-11-21 00:05:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:51,968 INFO L225 Difference]: With dead ends: 5984 [2021-11-21 00:05:51,969 INFO L226 Difference]: Without dead ends: 3900 [2021-11-21 00:05:51,980 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 00:05:51,981 INFO L933 BasicCegarLoop]: 1808 mSDtfsCounter, 1425 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:51,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1425 Valid, 3211 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 00:05:51,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-11-21 00:05:52,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3895. [2021-11-21 00:05:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 2188 states have (on average 1.2577696526508226) internal successors, (2752), 2261 states have internal predecessors, (2752), 1392 states have call successors, (1392), 316 states have call predecessors, (1392), 314 states have return successors, (1405), 1365 states have call predecessors, (1405), 1392 states have call successors, (1405) [2021-11-21 00:05:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5549 transitions. [2021-11-21 00:05:52,240 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5549 transitions. Word has length 165 [2021-11-21 00:05:52,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:52,241 INFO L470 AbstractCegarLoop]: Abstraction has 3895 states and 5549 transitions. [2021-11-21 00:05:52,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:05:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5549 transitions. [2021-11-21 00:05:52,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-21 00:05:52,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:52,247 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:52,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:05:52,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1487084844, now seen corresponding path program 1 times [2021-11-21 00:05:52,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:52,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544815196] [2021-11-21 00:05:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:52,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-21 00:05:52,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:52,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544815196] [2021-11-21 00:05:52,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544815196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:52,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:52,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:05:52,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442541432] [2021-11-21 00:05:52,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:52,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:05:52,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:52,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:05:52,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:52,482 INFO L87 Difference]: Start difference. First operand 3895 states and 5549 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:05:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:57,979 INFO L93 Difference]: Finished difference Result 12076 states and 17045 transitions. [2021-11-21 00:05:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:05:57,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2021-11-21 00:05:57,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:58,053 INFO L225 Difference]: With dead ends: 12076 [2021-11-21 00:05:58,053 INFO L226 Difference]: Without dead ends: 8198 [2021-11-21 00:05:58,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:58,082 INFO L933 BasicCegarLoop]: 2331 mSDtfsCounter, 3622 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 3530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:58,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3746 Valid, 4725 Invalid, 3530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 2645 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-21 00:05:58,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8198 states. [2021-11-21 00:05:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8198 to 8178. [2021-11-21 00:05:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8178 states, 4712 states have (on average 1.2606112054329373) internal successors, (5940), 4859 states have internal predecessors, (5940), 2741 states have call successors, (2741), 728 states have call predecessors, (2741), 724 states have return successors, (2754), 2701 states have call predecessors, (2754), 2741 states have call successors, (2754) [2021-11-21 00:05:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11435 transitions. [2021-11-21 00:05:58,723 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11435 transitions. Word has length 159 [2021-11-21 00:05:58,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:58,726 INFO L470 AbstractCegarLoop]: Abstraction has 8178 states and 11435 transitions. [2021-11-21 00:05:58,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:05:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11435 transitions. [2021-11-21 00:05:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-21 00:05:58,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:58,739 INFO L514 BasicCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:58,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:05:58,740 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:58,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash -161082968, now seen corresponding path program 1 times [2021-11-21 00:05:58,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:58,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736256522] [2021-11-21 00:05:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:58,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-11-21 00:05:59,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:59,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736256522] [2021-11-21 00:05:59,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736256522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:59,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:59,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:59,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328385448] [2021-11-21 00:05:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:59,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:59,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:59,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:59,057 INFO L87 Difference]: Start difference. First operand 8178 states and 11435 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:06:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:01,554 INFO L93 Difference]: Finished difference Result 18296 states and 25581 transitions. [2021-11-21 00:06:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:01,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 202 [2021-11-21 00:06:01,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:01,719 INFO L225 Difference]: With dead ends: 18296 [2021-11-21 00:06:01,720 INFO L226 Difference]: Without dead ends: 10135 [2021-11-21 00:06:01,763 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 00:06:01,768 INFO L933 BasicCegarLoop]: 2285 mSDtfsCounter, 1025 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:01,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 3684 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 00:06:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2021-11-21 00:06:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 10129. [2021-11-21 00:06:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10129 states, 5879 states have (on average 1.260588535465215) internal successors, (7411), 6059 states have internal predecessors, (7411), 3343 states have call successors, (3343), 910 states have call predecessors, (3343), 906 states have return successors, (3356), 3299 states have call predecessors, (3356), 3343 states have call successors, (3356) [2021-11-21 00:06:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10129 states to 10129 states and 14110 transitions. [2021-11-21 00:06:02,493 INFO L78 Accepts]: Start accepts. Automaton has 10129 states and 14110 transitions. Word has length 202 [2021-11-21 00:06:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:02,494 INFO L470 AbstractCegarLoop]: Abstraction has 10129 states and 14110 transitions. [2021-11-21 00:06:02,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:06:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 10129 states and 14110 transitions. [2021-11-21 00:06:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-21 00:06:02,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:02,506 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:02,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:06:02,507 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:06:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:02,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2097496315, now seen corresponding path program 1 times [2021-11-21 00:06:02,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:02,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003321596] [2021-11-21 00:06:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:02,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-21 00:06:02,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:02,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003321596] [2021-11-21 00:06:02,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003321596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:02,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:02,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:02,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316641099] [2021-11-21 00:06:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:02,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:02,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:02,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:02,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:02,792 INFO L87 Difference]: Start difference. First operand 10129 states and 14110 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:06:04,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:04,436 INFO L93 Difference]: Finished difference Result 20349 states and 28429 transitions. [2021-11-21 00:06:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 264 [2021-11-21 00:06:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:04,505 INFO L225 Difference]: With dead ends: 20349 [2021-11-21 00:06:04,505 INFO L226 Difference]: Without dead ends: 10237 [2021-11-21 00:06:04,548 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 00:06:04,549 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 4 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:04,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 2873 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:06:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2021-11-21 00:06:04,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 10165. [2021-11-21 00:06:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 5915 states have (on average 1.259002535925613) internal successors, (7447), 6095 states have internal predecessors, (7447), 3343 states have call successors, (3343), 910 states have call predecessors, (3343), 906 states have return successors, (3356), 3299 states have call predecessors, (3356), 3343 states have call successors, (3356) [2021-11-21 00:06:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 14146 transitions. [2021-11-21 00:06:05,042 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 14146 transitions. Word has length 264 [2021-11-21 00:06:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:05,043 INFO L470 AbstractCegarLoop]: Abstraction has 10165 states and 14146 transitions. [2021-11-21 00:06:05,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 00:06:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 14146 transitions. [2021-11-21 00:06:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-21 00:06:05,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:05,054 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:05,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:06:05,055 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:06:05,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash -283563066, now seen corresponding path program 1 times [2021-11-21 00:06:05,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:05,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24708481] [2021-11-21 00:06:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:05,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:05,323 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-21 00:06:05,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:05,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24708481] [2021-11-21 00:06:05,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24708481] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:06:05,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763075716] [2021-11-21 00:06:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:05,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:05,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:05,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c2e2bd2-13fa-4f97-b424-509f7493148d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:06:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:06,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 3504 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:06:06,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-21 00:06:07,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-21 00:06:07,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763075716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:07,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377007143] [2021-11-21 00:06:07,880 INFO L159 IcfgInterpreter]: Started Sifa with 143 locations of interest [2021-11-21 00:06:07,880 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:06:07,889 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:06:07,896 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:06:07,896 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs