./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/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_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:59:17,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:17,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:17,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:17,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:17,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:17,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:17,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:17,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:17,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:17,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:17,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:17,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:17,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:17,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:17,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:17,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:17,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:17,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:17,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:17,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:17,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:17,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:17,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:17,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:17,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:17,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:17,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:17,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:17,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:17,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:17,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:17,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:17,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:17,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:17,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:17,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:17,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:17,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:17,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:17,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:17,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:59:17,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:17,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:17,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:17,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:17,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:17,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:17,307 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:17,308 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:17,308 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:17,308 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:17,308 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:17,309 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:17,309 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:17,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:17,309 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:17,310 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:17,310 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:17,310 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:17,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:17,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:17,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:17,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:17,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:17,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:17,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:17,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:17,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:17,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:17,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:17,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:17,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:17,314 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:17,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:17,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:17,315 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:17,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:17,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:17,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:17,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa [2022-11-03 03:59:17,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:17,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:17,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:17,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:17,723 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:17,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 03:59:17,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/data/97ec7d074/417b376b887a4f15b5055c05c8bf873b/FLAG459ac515e [2022-11-03 03:59:19,028 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:19,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 03:59:19,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/data/97ec7d074/417b376b887a4f15b5055c05c8bf873b/FLAG459ac515e [2022-11-03 03:59:19,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/data/97ec7d074/417b376b887a4f15b5055c05c8bf873b [2022-11-03 03:59:19,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:19,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:19,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:19,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:19,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:19,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:19" (1/1) ... [2022-11-03 03:59:19,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5656e94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:19, skipping insertion in model container [2022-11-03 03:59:19,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:19" (1/1) ... [2022-11-03 03:59:19,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:19,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:24,929 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_39dc667b-df43-497d-86d0-bee5d1d252aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2022-11-03 03:59:24,932 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_39dc667b-df43-497d-86d0-bee5d1d252aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2022-11-03 03:59:24,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:25,096 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:25,662 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_39dc667b-df43-497d-86d0-bee5d1d252aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2022-11-03 03:59:25,662 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_39dc667b-df43-497d-86d0-bee5d1d252aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2022-11-03 03:59:25,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:26,094 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:26,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26 WrapperNode [2022-11-03 03:59:26,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:26,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:26,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:26,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:26,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:26,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:26,785 INFO L138 Inliner]: procedures = 661, calls = 4743, calls flagged for inlining = 357, calls inlined = 344, statements flattened = 10404 [2022-11-03 03:59:26,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:26,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:26,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:26,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:26,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:26,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:26,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:26,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:27,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:27,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:27,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:27,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (1/1) ... [2022-11-03 03:59:27,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:27,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:27,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:27,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39dc667b-df43-497d-86d0-bee5d1d252aa/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:59:27,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:59:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 03:59:27,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 03:59:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-03 03:59:27,515 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-03 03:59:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:59:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:59:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-03 03:59:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-03 03:59:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:59:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:59:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-03 03:59:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-03 03:59:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-03 03:59:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-03 03:59:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-03 03:59:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-03 03:59:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-03 03:59:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-03 03:59:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2022-11-03 03:59:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2022-11-03 03:59:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-03 03:59:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-03 03:59:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-03 03:59:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-03 03:59:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:59:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:59:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-03 03:59:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-03 03:59:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 03:59:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 03:59:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-03 03:59:27,521 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-03 03:59:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-03 03:59:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-03 03:59:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:59:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:59:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:59:27,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:59:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:59:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:59:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:59:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:59:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-03 03:59:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-03 03:59:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:59:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:59:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:59:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:59:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:59:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:59:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-03 03:59:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-03 03:59:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:59:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:59:27,528 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:59:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 03:59:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 03:59:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-03 03:59:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-03 03:59:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-03 03:59:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-03 03:59:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-03 03:59:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-03 03:59:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-03 03:59:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-03 03:59:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-03 03:59:27,531 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-03 03:59:27,531 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:59:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:59:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-03 03:59:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-03 03:59:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-03 03:59:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-03 03:59:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-03 03:59:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-03 03:59:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-03 03:59:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-03 03:59:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:59:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-03 03:59:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-03 03:59:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:59:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:59:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:59:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-03 03:59:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-03 03:59:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:59:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:59:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-03 03:59:27,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-03 03:59:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-03 03:59:27,538 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-03 03:59:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:59:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:59:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:59:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-03 03:59:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-03 03:59:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:59:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:59:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:59:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:59:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-03 03:59:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-03 03:59:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:59:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:59:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-03 03:59:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-03 03:59:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:59:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:59:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:59:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:59:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-03 03:59:27,548 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-03 03:59:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 03:59:27,549 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 03:59:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-03 03:59:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-03 03:59:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:59:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:59:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:59:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:59:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:59:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-03 03:59:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-03 03:59:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-03 03:59:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-03 03:59:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:59:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:59:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:59:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:59:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:59:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:59:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:59:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-03 03:59:27,559 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-03 03:59:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-03 03:59:27,559 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-03 03:59:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:59:27,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:59:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 03:59:27,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 03:59:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:59:27,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:59:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:59:27,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:59:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-03 03:59:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-03 03:59:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-03 03:59:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-03 03:59:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:59:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:59:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-03 03:59:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-03 03:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 03:59:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 03:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 03:59:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 03:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 03:59:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 03:59:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-03 03:59:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-03 03:59:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-03 03:59:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-03 03:59:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 03:59:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 03:59:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-03 03:59:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-03 03:59:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-03 03:59:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-03 03:59:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-03 03:59:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-03 03:59:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:59:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:59:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:59:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:59:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-03 03:59:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-03 03:59:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-03 03:59:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-03 03:59:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-03 03:59:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-03 03:59:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-03 03:59:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-03 03:59:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-03 03:59:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-03 03:59:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-03 03:59:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-03 03:59:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-03 03:59:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-03 03:59:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:59:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:59:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-03 03:59:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-03 03:59:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 03:59:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 03:59:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-03 03:59:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-03 03:59:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:59:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:59:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-03 03:59:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-03 03:59:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-03 03:59:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-03 03:59:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-03 03:59:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-03 03:59:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-03 03:59:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-03 03:59:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:59:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:59:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-03 03:59:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-03 03:59:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:59:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:59:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-03 03:59:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-03 03:59:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-03 03:59:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-03 03:59:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-03 03:59:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-03 03:59:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:59:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:59:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:59:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:59:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:59:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:59:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:59:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-03 03:59:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-03 03:59:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:59:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-03 03:59:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-03 03:59:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 03:59:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 03:59:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-03 03:59:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-03 03:59:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:59:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:59:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-03 03:59:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-03 03:59:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2022-11-03 03:59:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2022-11-03 03:59:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:59:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-03 03:59:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-03 03:59:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:59:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:59:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 03:59:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 03:59:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:59:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:59:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:59:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:59:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 03:59:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 03:59:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-03 03:59:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-03 03:59:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:59:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:59:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-03 03:59:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-03 03:59:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-03 03:59:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-03 03:59:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-03 03:59:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-03 03:59:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-03 03:59:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-03 03:59:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:59:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:59:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-03 03:59:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-03 03:59:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-03 03:59:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-03 03:59:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:59:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:59:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-03 03:59:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-03 03:59:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 03:59:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 03:59:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-03 03:59:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-03 03:59:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-03 03:59:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-03 03:59:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-03 03:59:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-03 03:59:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 03:59:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:59:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-03 03:59:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:59:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-03 03:59:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-03 03:59:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-03 03:59:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-03 03:59:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-03 03:59:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-03 03:59:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-03 03:59:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-03 03:59:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-03 03:59:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-03 03:59:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-03 03:59:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-03 03:59:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:59:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:59:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-03 03:59:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-03 03:59:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-03 03:59:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-03 03:59:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-03 03:59:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-03 03:59:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-03 03:59:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-03 03:59:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_95 [2022-11-03 03:59:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_95 [2022-11-03 03:59:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-03 03:59:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-03 03:59:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-03 03:59:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-03 03:59:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-03 03:59:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-03 03:59:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-03 03:59:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-03 03:59:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-03 03:59:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-03 03:59:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-03 03:59:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-03 03:59:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:59:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:59:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:59:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:59:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-03 03:59:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-03 03:59:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-03 03:59:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-03 03:59:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-03 03:59:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-03 03:59:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 03:59:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 03:59:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 03:59:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 03:59:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-03 03:59:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-03 03:59:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:59:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:59:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:59:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-03 03:59:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-03 03:59:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-03 03:59:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-03 03:59:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-03 03:59:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-03 03:59:29,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:29,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:33,500 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:59:49,695 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:59:49,884 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:52,847 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:52,847 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 03:59:52,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:52 BoogieIcfgContainer [2022-11-03 03:59:52,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:52,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:52,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:52,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:52,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:19" (1/3) ... [2022-11-03 03:59:52,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687c949e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:52, skipping insertion in model container [2022-11-03 03:59:52,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:26" (2/3) ... [2022-11-03 03:59:52,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687c949e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:52, skipping insertion in model container [2022-11-03 03:59:52,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:52" (3/3) ... [2022-11-03 03:59:52,864 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 03:59:52,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:52,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:52,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:52,988 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ad0e5ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:52,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:53,001 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) [2022-11-03 03:59:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-03 03:59:53,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:53,050 INFO L195 NwaCegarLoop]: 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] [2022-11-03 03:59:53,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:53,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1688980558, now seen corresponding path program 1 times [2022-11-03 03:59:53,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:53,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521152848] [2022-11-03 03:59:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:53,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-03 03:59:54,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521152848] [2022-11-03 03:59:54,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521152848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:54,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:54,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:54,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126310140] [2022-11-03 03:59:54,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:54,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:54,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:54,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:54,591 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) [2022-11-03 03:59:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:03,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:09,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:09,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:09,722 INFO L93 Difference]: Finished difference Result 6361 states and 9208 transitions. [2022-11-03 04:00:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:09,725 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 [2022-11-03 04:00:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:09,778 INFO L225 Difference]: With dead ends: 6361 [2022-11-03 04:00:09,778 INFO L226 Difference]: Without dead ends: 4025 [2022-11-03 04:00:09,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:09,802 INFO L413 NwaCegarLoop]: 3370 mSDtfsCounter, 2521 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 6122 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:09,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2524 Valid, 6122 Invalid, 1115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1095 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2022-11-03 04:00:09,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025 states. [2022-11-03 04:00:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4025 to 4020. [2022-11-03 04:00:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 2416 states have (on average 1.3096026490066226) internal successors, (3164), 2526 states have internal predecessors, (3164), 1287 states have call successors, (1287), 316 states have call predecessors, (1287), 316 states have return successors, (1290), 1265 states have call predecessors, (1290), 1287 states have call successors, (1290) [2022-11-03 04:00:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5741 transitions. [2022-11-03 04:00:10,216 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5741 transitions. Word has length 244 [2022-11-03 04:00:10,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:10,222 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 5741 transitions. [2022-11-03 04:00:10,222 INFO L496 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) [2022-11-03 04:00:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5741 transitions. [2022-11-03 04:00:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 04:00:10,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:10,251 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:00:10,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:00:10,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:10,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1983413453, now seen corresponding path program 1 times [2022-11-03 04:00:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:10,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069250027] [2022-11-03 04:00:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:10,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 04:00:10,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:10,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069250027] [2022-11-03 04:00:10,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069250027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:10,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:10,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:10,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593130284] [2022-11-03 04:00:10,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:10,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:10,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:10,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:10,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:10,918 INFO L87 Difference]: Start difference. First operand 4020 states and 5741 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) [2022-11-03 04:00:13,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:18,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:23,953 INFO L93 Difference]: Finished difference Result 10839 states and 15322 transitions. [2022-11-03 04:00:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:23,954 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 [2022-11-03 04:00:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:24,005 INFO L225 Difference]: With dead ends: 10839 [2022-11-03 04:00:24,005 INFO L226 Difference]: Without dead ends: 6858 [2022-11-03 04:00:24,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:24,023 INFO L413 NwaCegarLoop]: 3307 mSDtfsCounter, 2435 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:24,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 5991 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1099 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-11-03 04:00:24,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2022-11-03 04:00:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 6853. [2022-11-03 04:00:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 4111 states have (on average 1.2931160301629774) internal successors, (5316), 4301 states have internal predecessors, (5316), 2148 states have call successors, (2148), 593 states have call predecessors, (2148), 593 states have return successors, (2161), 2109 states have call predecessors, (2161), 2148 states have call successors, (2161) [2022-11-03 04:00:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 9625 transitions. [2022-11-03 04:00:24,383 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 9625 transitions. Word has length 247 [2022-11-03 04:00:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:24,385 INFO L495 AbstractCegarLoop]: Abstraction has 6853 states and 9625 transitions. [2022-11-03 04:00:24,385 INFO L496 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) [2022-11-03 04:00:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 9625 transitions. [2022-11-03 04:00:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-03 04:00:24,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:24,395 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2022-11-03 04:00:24,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:00:24,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:24,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1788208849, now seen corresponding path program 1 times [2022-11-03 04:00:24,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:24,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868469322] [2022-11-03 04:00:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:24,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-03 04:00:25,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:25,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868469322] [2022-11-03 04:00:25,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868469322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:25,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:25,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:25,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803855476] [2022-11-03 04:00:25,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:25,140 INFO L87 Difference]: Start difference. First operand 6853 states and 9625 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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) [2022-11-03 04:00:28,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:38,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:38,782 INFO L93 Difference]: Finished difference Result 19392 states and 27237 transitions. [2022-11-03 04:00:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:38,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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 261 [2022-11-03 04:00:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:38,878 INFO L225 Difference]: With dead ends: 19392 [2022-11-03 04:00:38,878 INFO L226 Difference]: Without dead ends: 12578 [2022-11-03 04:00:38,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:38,917 INFO L413 NwaCegarLoop]: 4025 mSDtfsCounter, 3090 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 6759 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:38,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 6759 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1192 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-03 04:00:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12578 states. [2022-11-03 04:00:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12578 to 12562. [2022-11-03 04:00:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12562 states, 7514 states have (on average 1.291722118711738) internal successors, (9706), 7864 states have internal predecessors, (9706), 3944 states have call successors, (3944), 1099 states have call predecessors, (3944), 1103 states have return successors, (4001), 3864 states have call predecessors, (4001), 3944 states have call successors, (4001) [2022-11-03 04:00:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12562 states to 12562 states and 17651 transitions. [2022-11-03 04:00:39,711 INFO L78 Accepts]: Start accepts. Automaton has 12562 states and 17651 transitions. Word has length 261 [2022-11-03 04:00:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:39,713 INFO L495 AbstractCegarLoop]: Abstraction has 12562 states and 17651 transitions. [2022-11-03 04:00:39,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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) [2022-11-03 04:00:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12562 states and 17651 transitions. [2022-11-03 04:00:39,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-03 04:00:39,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:39,726 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:00:39,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:00:39,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:39,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:39,728 INFO L85 PathProgramCache]: Analyzing trace with hash 385073210, now seen corresponding path program 1 times [2022-11-03 04:00:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:39,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064960822] [2022-11-03 04:00:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:39,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2022-11-03 04:00:40,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:40,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064960822] [2022-11-03 04:00:40,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064960822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:40,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:40,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:40,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465724579] [2022-11-03 04:00:40,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:40,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:40,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:40,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:40,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:40,546 INFO L87 Difference]: Start difference. First operand 12562 states and 17651 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (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) [2022-11-03 04:00:44,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:51,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:54,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:54,839 INFO L93 Difference]: Finished difference Result 37586 states and 52808 transitions. [2022-11-03 04:00:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:54,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (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 276 [2022-11-03 04:00:54,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:55,003 INFO L225 Difference]: With dead ends: 37586 [2022-11-03 04:00:55,004 INFO L226 Difference]: Without dead ends: 25063 [2022-11-03 04:00:55,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:55,073 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 3173 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:55,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 6850 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1201 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2022-11-03 04:00:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25063 states. [2022-11-03 04:00:56,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25063 to 25043. [2022-11-03 04:00:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25043 states, 14981 states have (on average 1.291569321140111) internal successors, (19349), 15693 states have internal predecessors, (19349), 7857 states have call successors, (7857), 2196 states have call predecessors, (7857), 2204 states have return successors, (7974), 7685 states have call predecessors, (7974), 7857 states have call successors, (7974) [2022-11-03 04:00:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25043 states to 25043 states and 35180 transitions. [2022-11-03 04:00:56,658 INFO L78 Accepts]: Start accepts. Automaton has 25043 states and 35180 transitions. Word has length 276 [2022-11-03 04:00:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:56,659 INFO L495 AbstractCegarLoop]: Abstraction has 25043 states and 35180 transitions. [2022-11-03 04:00:56,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (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) [2022-11-03 04:00:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 25043 states and 35180 transitions. [2022-11-03 04:00:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-03 04:00:56,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:56,683 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:00:56,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:00:56,683 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash -973570105, now seen corresponding path program 1 times [2022-11-03 04:00:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:56,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708999854] [2022-11-03 04:00:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:56,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1506 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-11-03 04:00:57,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:57,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708999854] [2022-11-03 04:00:57,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708999854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:57,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:57,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449194381] [2022-11-03 04:00:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:57,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:57,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:57,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:57,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:57,319 INFO L87 Difference]: Start difference. First operand 25043 states and 35180 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, (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) [2022-11-03 04:01:01,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:06,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:10,469 INFO L93 Difference]: Finished difference Result 50405 states and 70695 transitions. [2022-11-03 04:01:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:10,469 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, (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 291 [2022-11-03 04:01:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:10,624 INFO L225 Difference]: With dead ends: 50405 [2022-11-03 04:01:10,624 INFO L226 Difference]: Without dead ends: 25401 [2022-11-03 04:01:10,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:10,725 INFO L413 NwaCegarLoop]: 2797 mSDtfsCounter, 333 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 5503 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1058 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-11-03 04:01:10,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25401 states. [2022-11-03 04:01:12,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25401 to 25401. [2022-11-03 04:01:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25401 states, 15202 states have (on average 1.2894356005788712) internal successors, (19602), 15921 states have internal predecessors, (19602), 7925 states have call successors, (7925), 2265 states have call predecessors, (7925), 2273 states have return successors, (8042), 7753 states have call predecessors, (8042), 7925 states have call successors, (8042) [2022-11-03 04:01:12,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25401 states to 25401 states and 35569 transitions. [2022-11-03 04:01:12,545 INFO L78 Accepts]: Start accepts. Automaton has 25401 states and 35569 transitions. Word has length 291 [2022-11-03 04:01:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:12,546 INFO L495 AbstractCegarLoop]: Abstraction has 25401 states and 35569 transitions. [2022-11-03 04:01:12,547 INFO L496 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, (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) [2022-11-03 04:01:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 25401 states and 35569 transitions. [2022-11-03 04:01:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-03 04:01:12,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:12,564 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:01:12,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:01:12,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2036800215, now seen corresponding path program 1 times [2022-11-03 04:01:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:12,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894015616] [2022-11-03 04:01:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-03 04:01:13,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:13,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894015616] [2022-11-03 04:01:13,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894015616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:13,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:13,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:01:13,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136130585] [2022-11-03 04:01:13,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:13,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:01:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:01:13,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:13,588 INFO L87 Difference]: Start difference. First operand 25401 states and 35569 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) [2022-11-03 04:01:17,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:27,106 INFO L93 Difference]: Finished difference Result 59991 states and 83926 transitions. [2022-11-03 04:01:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:27,107 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 [2022-11-03 04:01:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:27,314 INFO L225 Difference]: With dead ends: 59991 [2022-11-03 04:01:27,314 INFO L226 Difference]: Without dead ends: 34875 [2022-11-03 04:01:27,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:27,419 INFO L413 NwaCegarLoop]: 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 [2022-11-03 04:01:27,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 6860 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2022-11-03 04:01:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34875 states. [2022-11-03 04:01:29,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34875 to 34865. [2022-11-03 04:01:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34865 states, 20872 states have (on average 1.2874664622460712) internal successors, (26872), 21853 states have internal predecessors, (26872), 10787 states have call successors, (10787), 3189 states have call predecessors, (10787), 3205 states have return successors, (10936), 10569 states have call predecessors, (10936), 10787 states have call successors, (10936) [2022-11-03 04:01:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34865 states to 34865 states and 48595 transitions. [2022-11-03 04:01:29,739 INFO L78 Accepts]: Start accepts. Automaton has 34865 states and 48595 transitions. Word has length 291 [2022-11-03 04:01:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:29,740 INFO L495 AbstractCegarLoop]: Abstraction has 34865 states and 48595 transitions. [2022-11-03 04:01:29,740 INFO L496 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) [2022-11-03 04:01:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 34865 states and 48595 transitions. [2022-11-03 04:01:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-03 04:01:29,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:29,785 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:01:29,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:01:29,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:29,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash 283828016, now seen corresponding path program 1 times [2022-11-03 04:01:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:29,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016012174] [2022-11-03 04:01:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:29,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-11-03 04:01:38,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:38,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016012174] [2022-11-03 04:01:38,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016012174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:38,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:38,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118838303] [2022-11-03 04:01:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:38,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:38,891 INFO L87 Difference]: Start difference. First operand 34865 states and 48595 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) [2022-11-03 04:01:44,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:01,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:03,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:06,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:16,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:17,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:17,895 INFO L93 Difference]: Finished difference Result 65039 states and 90651 transitions. [2022-11-03 04:02:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:02:17,899 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 [2022-11-03 04:02:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:18,253 INFO L225 Difference]: With dead ends: 65039 [2022-11-03 04:02:18,253 INFO L226 Difference]: Without dead ends: 65037 [2022-11-03 04:02:18,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:02:18,289 INFO L413 NwaCegarLoop]: 3470 mSDtfsCounter, 2818 mSDsluCounter, 13926 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 15236 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:18,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 15236 Invalid, 4086 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 4078 Invalid, 4 Unknown, 0 Unchecked, 34.1s Time] [2022-11-03 04:02:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65037 states. [2022-11-03 04:02:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65037 to 64844. [2022-11-03 04:02:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64844 states, 38975 states have (on average 1.2882873636946761) internal successors, (50211), 40775 states have internal predecessors, (50211), 19852 states have call successors, (19852), 6098 states have call predecessors, (19852), 6016 states have return successors, (20322), 19217 states have call predecessors, (20322), 19852 states have call successors, (20322) [2022-11-03 04:02:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64844 states to 64844 states and 90385 transitions. [2022-11-03 04:02:23,519 INFO L78 Accepts]: Start accepts. Automaton has 64844 states and 90385 transitions. Word has length 336 [2022-11-03 04:02:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:23,522 INFO L495 AbstractCegarLoop]: Abstraction has 64844 states and 90385 transitions. [2022-11-03 04:02:23,523 INFO L496 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) [2022-11-03 04:02:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 64844 states and 90385 transitions. [2022-11-03 04:02:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-11-03 04:02:23,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:23,615 INFO L195 NwaCegarLoop]: 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] [2022-11-03 04:02:23,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:02:23,616 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1016726523, now seen corresponding path program 1 times [2022-11-03 04:02:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:23,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079191381] [2022-11-03 04:02:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:23,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2022-11-03 04:02:24,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:24,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079191381] [2022-11-03 04:02:24,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079191381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:24,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:24,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:02:24,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909069665] [2022-11-03 04:02:24,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:24,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:02:24,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:02:24,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:02:24,577 INFO L87 Difference]: Start difference. First operand 64844 states and 90385 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) [2022-11-03 04:02:28,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:37,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:46,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:49,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:49,523 INFO L93 Difference]: Finished difference Result 192306 states and 268278 transitions. [2022-11-03 04:02:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:02:49,524 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 [2022-11-03 04:02:49,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:50,538 INFO L225 Difference]: With dead ends: 192306 [2022-11-03 04:02:50,539 INFO L226 Difference]: Without dead ends: 127501 [2022-11-03 04:02:50,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:02:50,843 INFO L413 NwaCegarLoop]: 3473 mSDtfsCounter, 3171 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3177 SdHoareTripleChecker+Valid, 6198 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:50,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3177 Valid, 6198 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1051 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-11-03 04:02:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127501 states.