./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:06:22,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:06:22,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:06:22,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:06:22,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:06:22,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:06:22,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:06:22,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:06:22,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:06:22,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:06:22,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:06:22,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:06:22,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:06:22,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:06:22,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:06:22,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:06:22,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:06:22,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:06:22,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:06:22,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:06:22,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:06:22,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:06:22,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:06:22,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:06:22,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:06:22,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:06:22,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:06:22,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:06:22,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:06:22,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:06:22,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:06:22,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:06:22,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:06:22,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:06:22,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:06:22,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:06:22,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:06:22,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:06:22,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:06:22,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:06:22,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:06:22,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:06:22,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:06:22,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:06:22,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:06:22,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:06:22,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:06:22,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:06:22,391 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:06:22,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:06:22,391 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:06:22,391 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:06:22,393 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:06:22,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:06:22,394 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:06:22,394 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:06:22,394 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:06:22,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:06:22,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:06:22,395 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:06:22,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:06:22,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:06:22,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:06:22,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:06:22,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:06:22,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:06:22,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:06:22,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:06:22,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:06:22,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:06:22,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:06:22,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:06:22,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:06:22,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:06:22,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:06:22,404 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:06:22,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:06:22,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:06:22,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:06:22,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:06:22,406 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2021-11-23 02:06:22,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:06:22,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:06:22,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:06:22,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:06:22,820 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:06:22,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 02:06:22,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/data/f6cd8d420/3a23cfd89d604d17b9f0ee72c959789b/FLAG1ce4f5330 [2021-11-23 02:06:24,191 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:06:24,192 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 02:06:24,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/data/f6cd8d420/3a23cfd89d604d17b9f0ee72c959789b/FLAG1ce4f5330 [2021-11-23 02:06:24,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/data/f6cd8d420/3a23cfd89d604d17b9f0ee72c959789b [2021-11-23 02:06:24,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:06:24,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:06:24,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:06:24,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:06:24,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:06:24,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:24" (1/1) ... [2021-11-23 02:06:24,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bab54bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:24, skipping insertion in model container [2021-11-23 02:06:24,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:24" (1/1) ... [2021-11-23 02:06:24,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:06:25,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:06:30,974 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_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-23 02:06:30,978 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_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-23 02:06:31,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:06:31,094 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:06:31,870 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_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-23 02:06:31,871 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_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-23 02:06:31,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:06:32,126 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:06:32,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32 WrapperNode [2021-11-23 02:06:32,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:06:32,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:06:32,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:06:32,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:06:32,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:32,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:32,642 INFO L137 Inliner]: procedures = 543, calls = 4199, calls flagged for inlining = 248, calls inlined = 232, statements flattened = 8662 [2021-11-23 02:06:32,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:06:32,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:06:32,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:06:32,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:06:32,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:32,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:32,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:32,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:33,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:33,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:33,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:33,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:06:33,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:06:33,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:06:33,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:06:33,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2021-11-23 02:06:33,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:06:33,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:33,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:06:33,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6348e23d-86ad-407b-a7f3-e9ba2a8bb725/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:06:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-23 02:06:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-23 02:06:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2021-11-23 02:06:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2021-11-23 02:06:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:06:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:06:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:06:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:06:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:06:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:06:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-23 02:06:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-23 02:06:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-23 02:06:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-23 02:06:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-23 02:06:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-23 02:06:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-23 02:06:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-23 02:06:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-23 02:06:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-23 02:06:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-23 02:06:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-23 02:06:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-23 02:06:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-23 02:06:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:06:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:06:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-23 02:06:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-23 02:06:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:06:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:06:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-23 02:06:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-23 02:06:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-23 02:06:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-23 02:06:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-23 02:06:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-23 02:06:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 02:06:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 02:06:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-23 02:06:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-23 02:06:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-23 02:06:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-23 02:06:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:06:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:06:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-23 02:06:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-23 02:06:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-23 02:06:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-23 02:06:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:06:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:06:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:06:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:06:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-23 02:06:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-23 02:06:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-23 02:06:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:06:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-23 02:06:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-23 02:06:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 02:06:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 02:06:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-23 02:06:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-23 02:06:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-23 02:06:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-23 02:06:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:06:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:06:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:06:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 02:06:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 02:06:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-23 02:06:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-23 02:06:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-23 02:06:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-23 02:06:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:06:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:06:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:06:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:06:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:06:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:06:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:06:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:06:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:06:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:06:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:06:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:06:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:06:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:06:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:06:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:06:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:06:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:06:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-23 02:06:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-23 02:06:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:06:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:06:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:06:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:06:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-23 02:06:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-23 02:06:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:06:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:06:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 02:06:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 02:06:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-23 02:06:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-23 02:06:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 02:06:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 02:06:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-23 02:06:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-23 02:06:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:06:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:06:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:06:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:06:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:06:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-23 02:06:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-23 02:06:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:06:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-23 02:06:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-23 02:06:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:06:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:06:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:06:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:06:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:06:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:06:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:06:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-23 02:06:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-23 02:06:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 02:06:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 02:06:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:06:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:06:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:06:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:06:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:06:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:06:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-23 02:06:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-23 02:06:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-23 02:06:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-23 02:06:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-23 02:06:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-23 02:06:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:06:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:06:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-23 02:06:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-23 02:06:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:06:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:06:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-23 02:06:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-23 02:06:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:06:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:06:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-23 02:06:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-23 02:06:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-23 02:06:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-23 02:06:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-23 02:06:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-23 02:06:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:06:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:06:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-23 02:06:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-23 02:06:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 02:06:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 02:06:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-23 02:06:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-23 02:06:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:06:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:06:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:06:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:06:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-23 02:06:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-23 02:06:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:06:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:06:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-23 02:06:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-23 02:06:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-23 02:06:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-23 02:06:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:06:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:06:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-23 02:06:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-23 02:06:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-23 02:06:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-23 02:06:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-23 02:06:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-23 02:06:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-23 02:06:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-23 02:06:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-23 02:06:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-23 02:06:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:06:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:06:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-23 02:06:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-23 02:06:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:06:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:06:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-23 02:06:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-23 02:06:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-23 02:06:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-23 02:06:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-23 02:06:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-23 02:06:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-23 02:06:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-23 02:06:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-23 02:06:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-23 02:06:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-23 02:06:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-23 02:06:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:06:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-23 02:06:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-23 02:06:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-23 02:06:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-23 02:06:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-23 02:06:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-23 02:06:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-23 02:06:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-23 02:06:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:06:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-23 02:06:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-23 02:06:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-23 02:06:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-23 02:06:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-23 02:06:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-23 02:06:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:06:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:06:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:06:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-23 02:06:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-23 02:06:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:06:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:06:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-23 02:06:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-23 02:06:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-23 02:06:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-23 02:06:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-23 02:06:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-23 02:06:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:06:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:06:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 02:06:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 02:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:06:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-23 02:06:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-23 02:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:06:33,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:06:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-23 02:06:33,708 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-23 02:06:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-23 02:06:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-23 02:06:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-23 02:06:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-23 02:06:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-23 02:06:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-23 02:06:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-23 02:06:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-23 02:06:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 02:06:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 02:06:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:06:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:06:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:06:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:06:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-23 02:06:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-23 02:06:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:06:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:06:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-23 02:06:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-23 02:06:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:06:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-23 02:06:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-23 02:06:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:06:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:06:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-23 02:06:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-23 02:06:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:06:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:06:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-23 02:06:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-23 02:06:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 02:06:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 02:06:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-23 02:06:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-23 02:06:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-23 02:06:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-23 02:06:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-23 02:06:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-23 02:06:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-23 02:06:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-23 02:06:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-23 02:06:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-23 02:06:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:06:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:06:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-23 02:06:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-23 02:06:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-23 02:06:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-23 02:06:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-23 02:06:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-23 02:06:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-23 02:06:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-23 02:06:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-23 02:06:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-23 02:06:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-23 02:06:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-23 02:06:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:06:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:06:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-23 02:06:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-23 02:06:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-23 02:06:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-23 02:06:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-23 02:06:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-23 02:06:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-23 02:06:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-23 02:06:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-23 02:06:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-23 02:06:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-23 02:06:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-23 02:06:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:06:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:06:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:06:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 02:06:35,211 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:06:35,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:06:36,006 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:06:56,224 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:06:56,669 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:07:01,163 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:07:01,164 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-23 02:07:01,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:01 BoogieIcfgContainer [2021-11-23 02:07:01,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:07:01,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:07:01,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:07:01,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:07:01,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:24" (1/3) ... [2021-11-23 02:07:01,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ce94ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:01, skipping insertion in model container [2021-11-23 02:07:01,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (2/3) ... [2021-11-23 02:07:01,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ce94ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:01, skipping insertion in model container [2021-11-23 02:07:01,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:01" (3/3) ... [2021-11-23 02:07:01,189 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 02:07:01,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:07:01,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:07:01,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:07:01,321 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:07:01,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:07:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) [2021-11-23 02:07:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 02:07:01,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:01,492 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2021-11-23 02:07:01,493 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1353830328, now seen corresponding path program 1 times [2021-11-23 02:07:01,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:01,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829587407] [2021-11-23 02:07:01,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:01,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2021-11-23 02:07:02,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:02,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829587407] [2021-11-23 02:07:02,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829587407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:02,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:02,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:02,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741008233] [2021-11-23 02:07:02,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:02,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:02,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:02,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:02,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:02,536 INFO L87 Difference]: Start difference. First operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:07:04,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:11,326 INFO L93 Difference]: Finished difference Result 8398 states and 12822 transitions. [2021-11-23 02:07:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:11,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2021-11-23 02:07:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:11,421 INFO L225 Difference]: With dead ends: 8398 [2021-11-23 02:07:11,421 INFO L226 Difference]: Without dead ends: 5331 [2021-11-23 02:07:11,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:11,474 INFO L933 BasicCegarLoop]: 4743 mSDtfsCounter, 3541 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 8624 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:11,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3541 Valid, 8624 Invalid, 1149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1131 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-23 02:07:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-11-23 02:07:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5328. [2021-11-23 02:07:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3330 states have (on average 1.3396396396396397) internal successors, (4461), 3409 states have internal predecessors, (4461), 1720 states have call successors, (1720), 277 states have call predecessors, (1720), 277 states have return successors, (1720), 1694 states have call predecessors, (1720), 1720 states have call successors, (1720) [2021-11-23 02:07:12,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7901 transitions. [2021-11-23 02:07:12,083 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7901 transitions. Word has length 199 [2021-11-23 02:07:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:12,085 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 7901 transitions. [2021-11-23 02:07:12,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:07:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7901 transitions. [2021-11-23 02:07:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-23 02:07:12,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:12,123 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 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] [2021-11-23 02:07:12,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:07:12,123 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 474535166, now seen corresponding path program 1 times [2021-11-23 02:07:12,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:12,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113478876] [2021-11-23 02:07:12,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:12,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-23 02:07:12,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:12,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113478876] [2021-11-23 02:07:12,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113478876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:12,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:12,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:12,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633964143] [2021-11-23 02:07:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:12,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:12,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:12,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:12,457 INFO L87 Difference]: Start difference. First operand 5328 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:07:14,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:22,179 INFO L93 Difference]: Finished difference Result 15652 states and 23509 transitions. [2021-11-23 02:07:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 227 [2021-11-23 02:07:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:22,333 INFO L225 Difference]: With dead ends: 15652 [2021-11-23 02:07:22,333 INFO L226 Difference]: Without dead ends: 10355 [2021-11-23 02:07:22,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:22,406 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4242 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 8777 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:22,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4242 Valid, 8777 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-23 02:07:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-23 02:07:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10349. [2021-11-23 02:07:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6464 states have (on average 1.3405012376237624) internal successors, (8665), 6627 states have internal predecessors, (8665), 3335 states have call successors, (3335), 552 states have call predecessors, (3335), 549 states have return successors, (3643), 3275 states have call predecessors, (3643), 3335 states have call successors, (3643) [2021-11-23 02:07:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15643 transitions. [2021-11-23 02:07:23,763 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15643 transitions. Word has length 227 [2021-11-23 02:07:23,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:23,765 INFO L470 AbstractCegarLoop]: Abstraction has 10349 states and 15643 transitions. [2021-11-23 02:07:23,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:07:23,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15643 transitions. [2021-11-23 02:07:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-23 02:07:23,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:23,800 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:23,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:07:23,801 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:23,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 420386674, now seen corresponding path program 1 times [2021-11-23 02:07:23,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:23,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766981727] [2021-11-23 02:07:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:23,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-23 02:07:24,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:24,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766981727] [2021-11-23 02:07:24,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766981727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:24,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:24,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:24,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27314899] [2021-11-23 02:07:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:24,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:24,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:24,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:24,251 INFO L87 Difference]: Start difference. First operand 10349 states and 15643 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:07:26,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:33,304 INFO L93 Difference]: Finished difference Result 30877 states and 46663 transitions. [2021-11-23 02:07:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:33,304 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 231 [2021-11-23 02:07:33,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:33,519 INFO L225 Difference]: With dead ends: 30877 [2021-11-23 02:07:33,519 INFO L226 Difference]: Without dead ends: 20559 [2021-11-23 02:07:33,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:33,634 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4297 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:33,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4297 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-23 02:07:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2021-11-23 02:07:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20557. [2021-11-23 02:07:34,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20557 states, 12843 states have (on average 1.3390173635443432) internal successors, (17197), 13169 states have internal predecessors, (17197), 6615 states have call successors, (6615), 1104 states have call predecessors, (6615), 1098 states have return successors, (7233), 6495 states have call predecessors, (7233), 6615 states have call successors, (7233) [2021-11-23 02:07:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 31045 transitions. [2021-11-23 02:07:35,504 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 31045 transitions. Word has length 231 [2021-11-23 02:07:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:35,507 INFO L470 AbstractCegarLoop]: Abstraction has 20557 states and 31045 transitions. [2021-11-23 02:07:35,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:07:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 31045 transitions. [2021-11-23 02:07:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-23 02:07:35,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:35,540 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:35,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:07:35,541 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1433819076, now seen corresponding path program 1 times [2021-11-23 02:07:35,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:35,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123424282] [2021-11-23 02:07:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:35,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-23 02:07:36,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:36,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123424282] [2021-11-23 02:07:36,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123424282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:36,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:36,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:36,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055763954] [2021-11-23 02:07:36,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:36,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:36,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:36,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:36,042 INFO L87 Difference]: Start difference. First operand 20557 states and 31045 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:07:38,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:45,055 INFO L93 Difference]: Finished difference Result 61393 states and 92695 transitions. [2021-11-23 02:07:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 232 [2021-11-23 02:07:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:45,497 INFO L225 Difference]: With dead ends: 61393 [2021-11-23 02:07:45,498 INFO L226 Difference]: Without dead ends: 40867 [2021-11-23 02:07:45,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:45,728 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4296 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:45,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4296 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-23 02:07:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2021-11-23 02:07:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 40865. [2021-11-23 02:07:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40865 states, 25533 states have (on average 1.337288998550895) internal successors, (34145), 26185 states have internal predecessors, (34145), 13135 states have call successors, (13135), 2208 states have call predecessors, (13135), 2196 states have return successors, (14375), 12895 states have call predecessors, (14375), 13135 states have call successors, (14375) [2021-11-23 02:07:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40865 states to 40865 states and 61655 transitions. [2021-11-23 02:07:49,732 INFO L78 Accepts]: Start accepts. Automaton has 40865 states and 61655 transitions. Word has length 232 [2021-11-23 02:07:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:49,733 INFO L470 AbstractCegarLoop]: Abstraction has 40865 states and 61655 transitions. [2021-11-23 02:07:49,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:07:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 40865 states and 61655 transitions. [2021-11-23 02:07:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-23 02:07:49,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:49,761 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:49,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:07:49,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:49,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:49,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1156625612, now seen corresponding path program 1 times [2021-11-23 02:07:49,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:49,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769381882] [2021-11-23 02:07:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:49,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-23 02:07:50,361 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:50,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769381882] [2021-11-23 02:07:50,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769381882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:50,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:50,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:07:50,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493260031] [2021-11-23 02:07:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:50,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:07:50,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:07:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:50,364 INFO L87 Difference]: Start difference. First operand 40865 states and 61655 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:07:52,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:16,411 INFO L93 Difference]: Finished difference Result 156087 states and 235158 transitions. [2021-11-23 02:08:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:08:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2021-11-23 02:08:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:17,423 INFO L225 Difference]: With dead ends: 156087 [2021-11-23 02:08:17,423 INFO L226 Difference]: Without dead ends: 115253 [2021-11-23 02:08:17,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:17,838 INFO L933 BasicCegarLoop]: 5539 mSDtfsCounter, 10719 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 6885 mSolverCounterSat, 2078 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10899 SdHoareTripleChecker+Valid, 13195 SdHoareTripleChecker+Invalid, 8964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 6885 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:17,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10899 Valid, 13195 Invalid, 8964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2078 Valid, 6885 Invalid, 1 Unknown, 0 Unchecked, 22.3s Time] [2021-11-23 02:08:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115253 states. [2021-11-23 02:08:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115253 to 115161. [2021-11-23 02:08:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115161 states, 71961 states have (on average 1.3356818276566473) internal successors, (96117), 73821 states have internal predecessors, (96117), 36887 states have call successors, (36887), 6346 states have call predecessors, (36887), 6312 states have return successors, (40343), 36205 states have call predecessors, (40343), 36887 states have call successors, (40343) [2021-11-23 02:08:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115161 states to 115161 states and 173347 transitions. [2021-11-23 02:08:25,775 INFO L78 Accepts]: Start accepts. Automaton has 115161 states and 173347 transitions. Word has length 233 [2021-11-23 02:08:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:25,776 INFO L470 AbstractCegarLoop]: Abstraction has 115161 states and 173347 transitions. [2021-11-23 02:08:25,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:08:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 115161 states and 173347 transitions. [2021-11-23 02:08:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-23 02:08:26,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:26,172 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 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] [2021-11-23 02:08:26,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:08:26,172 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:26,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:26,173 INFO L85 PathProgramCache]: Analyzing trace with hash -687134285, now seen corresponding path program 1 times [2021-11-23 02:08:26,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:26,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465585767] [2021-11-23 02:08:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:26,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-23 02:08:26,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:26,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465585767] [2021-11-23 02:08:26,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465585767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:26,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:26,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:26,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642922034] [2021-11-23 02:08:26,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:26,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:26,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:26,458 INFO L87 Difference]: Start difference. First operand 115161 states and 173347 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) [2021-11-23 02:08:28,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:41,018 INFO L93 Difference]: Finished difference Result 278241 states and 418715 transitions. [2021-11-23 02:08:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:41,019 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 242 [2021-11-23 02:08:41,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:42,115 INFO L225 Difference]: With dead ends: 278241 [2021-11-23 02:08:42,115 INFO L226 Difference]: Without dead ends: 163111 [2021-11-23 02:08:43,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:43,175 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 3500 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 10752 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:43,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3500 Valid, 10752 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1538 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-23 02:08:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163111 states.