./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-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba --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 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:17:50,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:17:50,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:17:50,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:17:50,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:17:50,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:17:50,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:17:50,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:17:50,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:17:50,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:17:50,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:17:50,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:17:50,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:17:50,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:17:50,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:17:50,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:17:50,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:17:50,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:17:50,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:17:50,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:17:50,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:17:50,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:17:50,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:17:50,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:17:50,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:17:50,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:17:50,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:17:50,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:17:50,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:17:50,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:17:50,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:17:50,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:17:50,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:17:50,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:17:50,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:17:50,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:17:50,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:17:50,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:17:50,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:17:50,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:17:50,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:17:50,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:17:50,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:17:50,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:17:50,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:17:50,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:17:50,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:17:50,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:17:50,322 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:17:50,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:17:50,323 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:17:50,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:17:50,323 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:17:50,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:17:50,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:17:50,324 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:17:50,324 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:17:50,325 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:17:50,325 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:17:50,325 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:17:50,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:17:50,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:17:50,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:17:50,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:17:50,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:17:50,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:17:50,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:17:50,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:17:50,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:17:50,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:17:50,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:17:50,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:17:50,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:17:50,329 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:17:50,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:17:50,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:17:50,330 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:17:50,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:17:50,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:17:50,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:17:50,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2022-11-22 01:17:50,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:17:50,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:17:50,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:17:50,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:17:50,686 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:17:50,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-22 01:17:53,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:17:54,510 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:17:54,511 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-22 01:17:54,588 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/data/322cb7500/6de494c27a3b4fc3b3f82d2d66a72757/FLAGc63459034 [2022-11-22 01:17:54,603 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/data/322cb7500/6de494c27a3b4fc3b3f82d2d66a72757 [2022-11-22 01:17:54,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:17:54,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:17:54,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:17:54,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:17:54,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:17:54,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:17:54" (1/1) ... [2022-11-22 01:17:54,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4916ba64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:54, skipping insertion in model container [2022-11-22 01:17:54,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:17:54" (1/1) ... [2022-11-22 01:17:54,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:17:54,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:17:59,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-22 01:17:59,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-22 01:17:59,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:17:59,716 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:18:00,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-22 01:18:00,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-22 01:18:00,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:18:00,567 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:18:00,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00 WrapperNode [2022-11-22 01:18:00,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:18:00,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:00,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:18:00,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:18:00,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:00,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,167 INFO L138 Inliner]: procedures = 567, calls = 5431, calls flagged for inlining = 289, calls inlined = 263, statements flattened = 11837 [2022-11-22 01:18:01,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:01,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:18:01,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:18:01,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:18:01,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:18:01,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:18:01,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:18:01,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:18:01,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (1/1) ... [2022-11-22 01:18:01,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:18:01,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:01,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:18:01,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4a462a-5b51-47f7-bb04-77dd102b49dc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:18:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2022-11-22 01:18:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2022-11-22 01:18:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2022-11-22 01:18:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2022-11-22 01:18:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:18:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:18:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:18:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:18:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 01:18:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 01:18:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2022-11-22 01:18:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2022-11-22 01:18:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:18:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:18:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2022-11-22 01:18:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2022-11-22 01:18:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2022-11-22 01:18:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2022-11-22 01:18:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:18:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:18:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:18:01,813 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:18:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:18:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:18:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:18:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:18:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:18:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:18:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-22 01:18:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-22 01:18:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-22 01:18:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-22 01:18:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:18:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:18:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-22 01:18:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-22 01:18:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:18:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:18:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:18:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:18:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:18:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:18:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2022-11-22 01:18:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2022-11-22 01:18:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:18:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:18:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-22 01:18:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-22 01:18:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:18:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:18:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:18:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:18:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:18:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:18:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:18:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:18:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:18:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2022-11-22 01:18:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2022-11-22 01:18:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2022-11-22 01:18:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2022-11-22 01:18:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:18:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:18:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2022-11-22 01:18:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2022-11-22 01:18:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:18:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:18:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2022-11-22 01:18:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2022-11-22 01:18:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2022-11-22 01:18:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2022-11-22 01:18:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2022-11-22 01:18:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2022-11-22 01:18:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:18:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:18:01,822 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:18:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:18:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:18:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:18:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:18:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:18:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-22 01:18:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-22 01:18:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:18:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:18:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:18:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:18:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:18:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:18:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:18:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:18:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:18:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:18:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:18:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:18:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:18:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:18:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2022-11-22 01:18:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2022-11-22 01:18:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:18:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:18:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:18:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2022-11-22 01:18:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2022-11-22 01:18:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:18:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:18:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:18:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:18:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:18:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:18:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:18:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:18:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:18:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:18:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:18:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:18:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:18:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2022-11-22 01:18:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2022-11-22 01:18:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 01:18:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 01:18:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-22 01:18:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-22 01:18:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:18:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:18:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:18:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:18:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 01:18:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 01:18:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-22 01:18:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-22 01:18:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:18:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:18:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 01:18:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 01:18:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:18:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:18:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:18:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:18:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-22 01:18:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-22 01:18:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:18:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:18:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-22 01:18:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-22 01:18:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:18:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:18:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2022-11-22 01:18:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2022-11-22 01:18:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:18:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:18:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:18:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:18:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-22 01:18:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-22 01:18:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:18:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:18:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2022-11-22 01:18:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2022-11-22 01:18:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:18:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:18:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-22 01:18:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-22 01:18:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-22 01:18:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-22 01:18:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:18:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:18:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2022-11-22 01:18:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2022-11-22 01:18:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2022-11-22 01:18:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2022-11-22 01:18:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:18:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:18:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-22 01:18:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-22 01:18:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-22 01:18:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-22 01:18:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:18:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:18:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:18:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:18:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2022-11-22 01:18:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2022-11-22 01:18:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-22 01:18:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-22 01:18:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:18:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:18:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:18:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2022-11-22 01:18:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2022-11-22 01:18:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:18:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:18:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:18:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 01:18:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 01:18:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:18:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:18:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-22 01:18:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2022-11-22 01:18:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2022-11-22 01:18:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2022-11-22 01:18:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:18:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:18:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:18:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:18:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2022-11-22 01:18:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2022-11-22 01:18:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:18:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:18:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:18:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:18:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2022-11-22 01:18:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2022-11-22 01:18:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 01:18:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 01:18:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2022-11-22 01:18:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2022-11-22 01:18:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-22 01:18:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-22 01:18:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2022-11-22 01:18:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2022-11-22 01:18:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2022-11-22 01:18:01,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:18:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:18:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:18:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:18:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:18:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:18:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2022-11-22 01:18:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:18:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2022-11-22 01:18:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-22 01:18:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2022-11-22 01:18:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2022-11-22 01:18:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:18:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2022-11-22 01:18:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:18:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:18:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:18:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:18:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:18:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2022-11-22 01:18:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:18:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2022-11-22 01:18:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2022-11-22 01:18:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2022-11-22 01:18:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:18:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:18:03,210 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:18:03,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:18:04,607 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:18:14,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:18:14,980 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:18:20,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:18:20,330 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 01:18:20,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:20 BoogieIcfgContainer [2022-11-22 01:18:20,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:18:20,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:18:20,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:18:20,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:18:20,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:17:54" (1/3) ... [2022-11-22 01:18:20,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b553a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:20, skipping insertion in model container [2022-11-22 01:18:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:00" (2/3) ... [2022-11-22 01:18:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b553a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:20, skipping insertion in model container [2022-11-22 01:18:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:20" (3/3) ... [2022-11-22 01:18:20,354 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-22 01:18:20,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:18:20,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:18:20,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:18:20,740 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d4cdb4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:18:20,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:18:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 2630 states, 1542 states have (on average 1.3514915693904022) internal successors, (2084), 1642 states have internal predecessors, (2084), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 902 states have call predecessors, (948), 948 states have call successors, (948) [2022-11-22 01:18:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 01:18:20,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:20,801 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-11-22 01:18:20,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:18:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash -332575467, now seen corresponding path program 1 times [2022-11-22 01:18:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:20,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179828297] [2022-11-22 01:18:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:20,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2022-11-22 01:18:22,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:22,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179828297] [2022-11-22 01:18:22,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179828297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:22,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:22,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66681268] [2022-11-22 01:18:22,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:22,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:22,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:22,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:22,325 INFO L87 Difference]: Start difference. First operand has 2630 states, 1542 states have (on average 1.3514915693904022) internal successors, (2084), 1642 states have internal predecessors, (2084), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 902 states have call predecessors, (948), 948 states have call successors, (948) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:18:29,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:30,204 INFO L93 Difference]: Finished difference Result 6978 states and 10633 transitions. [2022-11-22 01:18:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:18:30,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2022-11-22 01:18:30,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:30,267 INFO L225 Difference]: With dead ends: 6978 [2022-11-22 01:18:30,268 INFO L226 Difference]: Without dead ends: 4315 [2022-11-22 01:18:30,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:30,297 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 2650 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 7625 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:30,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 7625 Invalid, 958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-22 01:18:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4315 states. [2022-11-22 01:18:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4315 to 4312. [2022-11-22 01:18:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 2570 states have (on average 1.34863813229572) internal successors, (3466), 2726 states have internal predecessors, (3466), 1520 states have call successors, (1520), 221 states have call predecessors, (1520), 221 states have return successors, (1520), 1447 states have call predecessors, (1520), 1520 states have call successors, (1520) [2022-11-22 01:18:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 6506 transitions. [2022-11-22 01:18:30,917 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 6506 transitions. Word has length 170 [2022-11-22 01:18:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:30,921 INFO L495 AbstractCegarLoop]: Abstraction has 4312 states and 6506 transitions. [2022-11-22 01:18:30,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:18:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 6506 transitions. [2022-11-22 01:18:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-22 01:18:30,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:30,957 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:30,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:18:30,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:18:30,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash 209464767, now seen corresponding path program 1 times [2022-11-22 01:18:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:30,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537656974] [2022-11-22 01:18:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:30,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-11-22 01:18:32,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:32,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537656974] [2022-11-22 01:18:32,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537656974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:32,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:32,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:32,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205367231] [2022-11-22 01:18:32,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:32,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:32,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:32,109 INFO L87 Difference]: Start difference. First operand 4312 states and 6506 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:18:39,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:40,202 INFO L93 Difference]: Finished difference Result 12562 states and 18989 transitions. [2022-11-22 01:18:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:18:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 216 [2022-11-22 01:18:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:40,275 INFO L225 Difference]: With dead ends: 12562 [2022-11-22 01:18:40,275 INFO L226 Difference]: Without dead ends: 8277 [2022-11-22 01:18:40,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:40,303 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 3572 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 7653 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:40,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 7653 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 876 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:18:40,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-11-22 01:18:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8260. [2022-11-22 01:18:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 4927 states have (on average 1.3482849604221636) internal successors, (6643), 5225 states have internal predecessors, (6643), 2901 states have call successors, (2901), 435 states have call predecessors, (2901), 431 states have return successors, (2953), 2753 states have call predecessors, (2953), 2901 states have call successors, (2953) [2022-11-22 01:18:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 12497 transitions. [2022-11-22 01:18:41,091 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 12497 transitions. Word has length 216 [2022-11-22 01:18:41,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:41,093 INFO L495 AbstractCegarLoop]: Abstraction has 8260 states and 12497 transitions. [2022-11-22 01:18:41,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:18:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 12497 transitions. [2022-11-22 01:18:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-22 01:18:41,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:41,114 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 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] [2022-11-22 01:18:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:18:41,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:18:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash 79663805, now seen corresponding path program 1 times [2022-11-22 01:18:41,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:41,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436208184] [2022-11-22 01:18:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:41,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-11-22 01:18:41,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:41,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436208184] [2022-11-22 01:18:41,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436208184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:41,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:41,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:41,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645877447] [2022-11-22 01:18:41,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:41,711 INFO L87 Difference]: Start difference. First operand 8260 states and 12497 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:18:48,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:49,092 INFO L93 Difference]: Finished difference Result 24306 states and 36759 transitions. [2022-11-22 01:18:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:18:49,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 215 [2022-11-22 01:18:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:49,217 INFO L225 Difference]: With dead ends: 24306 [2022-11-22 01:18:49,217 INFO L226 Difference]: Without dead ends: 16073 [2022-11-22 01:18:49,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:49,269 INFO L413 NwaCegarLoop]: 4480 mSDtfsCounter, 3563 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 7928 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:49,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3563 Valid, 7928 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 932 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 01:18:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16073 states. [2022-11-22 01:18:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16073 to 16052. [2022-11-22 01:18:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16052 states, 9566 states have (on average 1.3466443654610076) internal successors, (12882), 10155 states have internal predecessors, (12882), 5637 states have call successors, (5637), 856 states have call predecessors, (5637), 848 states have return successors, (5735), 5340 states have call predecessors, (5735), 5637 states have call successors, (5735) [2022-11-22 01:18:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16052 states to 16052 states and 24254 transitions. [2022-11-22 01:18:50,687 INFO L78 Accepts]: Start accepts. Automaton has 16052 states and 24254 transitions. Word has length 215 [2022-11-22 01:18:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:50,689 INFO L495 AbstractCegarLoop]: Abstraction has 16052 states and 24254 transitions. [2022-11-22 01:18:50,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:18:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 16052 states and 24254 transitions. [2022-11-22 01:18:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-22 01:18:50,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:50,729 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-11-22 01:18:50,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:18:50,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:18:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581844, now seen corresponding path program 1 times [2022-11-22 01:18:50,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:50,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735940155] [2022-11-22 01:18:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-11-22 01:18:51,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:51,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735940155] [2022-11-22 01:18:51,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735940155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:51,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:51,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:51,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126262274] [2022-11-22 01:18:51,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:51,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:51,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:51,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:51,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:51,590 INFO L87 Difference]: Start difference. First operand 16052 states and 24254 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:18:59,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:00,381 INFO L93 Difference]: Finished difference Result 38770 states and 58622 transitions. [2022-11-22 01:19:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 217 [2022-11-22 01:19:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:00,520 INFO L225 Difference]: With dead ends: 38770 [2022-11-22 01:19:00,520 INFO L226 Difference]: Without dead ends: 22745 [2022-11-22 01:19:00,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:00,600 INFO L413 NwaCegarLoop]: 5769 mSDtfsCounter, 2597 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 9191 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:00,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 9191 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1214 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 01:19:00,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22745 states. [2022-11-22 01:19:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22745 to 22739. [2022-11-22 01:19:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22739 states, 13598 states have (on average 1.347698190910428) internal successors, (18326), 14415 states have internal predecessors, (18326), 7939 states have call successors, (7939), 1211 states have call predecessors, (7939), 1201 states have return successors, (8078), 7529 states have call predecessors, (8078), 7939 states have call successors, (8078) [2022-11-22 01:19:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22739 states to 22739 states and 34343 transitions. [2022-11-22 01:19:02,475 INFO L78 Accepts]: Start accepts. Automaton has 22739 states and 34343 transitions. Word has length 217 [2022-11-22 01:19:02,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:02,476 INFO L495 AbstractCegarLoop]: Abstraction has 22739 states and 34343 transitions. [2022-11-22 01:19:02,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:19:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 22739 states and 34343 transitions. [2022-11-22 01:19:02,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-22 01:19:02,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:02,509 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 13, 13, 13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:19:02,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:02,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:02,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1033454250, now seen corresponding path program 1 times [2022-11-22 01:19:02,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:02,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768041873] [2022-11-22 01:19:02,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:02,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-11-22 01:19:03,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768041873] [2022-11-22 01:19:03,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768041873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:03,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:03,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:03,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223012664] [2022-11-22 01:19:03,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:03,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:03,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:03,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:03,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:03,046 INFO L87 Difference]: Start difference. First operand 22739 states and 34343 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:19:10,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:10,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:10,966 INFO L93 Difference]: Finished difference Result 48722 states and 73529 transitions. [2022-11-22 01:19:10,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:10,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 230 [2022-11-22 01:19:10,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:11,128 INFO L225 Difference]: With dead ends: 48722 [2022-11-22 01:19:11,128 INFO L226 Difference]: Without dead ends: 26010 [2022-11-22 01:19:11,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:11,213 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 2551 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 7496 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:11,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 7496 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 906 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 01:19:11,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26010 states. [2022-11-22 01:19:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26010 to 26008. [2022-11-22 01:19:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26008 states, 15576 states have (on average 1.3471366204417052) internal successors, (20983), 16502 states have internal predecessors, (20983), 9038 states have call successors, (9038), 1404 states have call predecessors, (9038), 1393 states have return successors, (9196), 8576 states have call predecessors, (9196), 9038 states have call successors, (9196) [2022-11-22 01:19:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26008 states to 26008 states and 39217 transitions. [2022-11-22 01:19:13,331 INFO L78 Accepts]: Start accepts. Automaton has 26008 states and 39217 transitions. Word has length 230 [2022-11-22 01:19:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:13,332 INFO L495 AbstractCegarLoop]: Abstraction has 26008 states and 39217 transitions. [2022-11-22 01:19:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:19:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 26008 states and 39217 transitions. [2022-11-22 01:19:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-22 01:19:13,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:13,446 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:13,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:19:13,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:13,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash 873450044, now seen corresponding path program 1 times [2022-11-22 01:19:13,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:13,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003573243] [2022-11-22 01:19:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2022-11-22 01:19:14,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:14,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003573243] [2022-11-22 01:19:14,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003573243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:14,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:14,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205427272] [2022-11-22 01:19:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:14,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:14,134 INFO L87 Difference]: Start difference. First operand 26008 states and 39217 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 01:19:23,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:24,048 INFO L93 Difference]: Finished difference Result 59906 states and 90326 transitions. [2022-11-22 01:19:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:24,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 272 [2022-11-22 01:19:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:24,270 INFO L225 Difference]: With dead ends: 59906 [2022-11-22 01:19:24,270 INFO L226 Difference]: Without dead ends: 37118 [2022-11-22 01:19:24,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:24,371 INFO L413 NwaCegarLoop]: 6631 mSDtfsCounter, 3563 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:24,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3563 Valid, 10077 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1313 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:19:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37118 states. [2022-11-22 01:19:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37118 to 37093. [2022-11-22 01:19:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37093 states, 22194 states have (on average 1.346760385689826) internal successors, (29890), 23526 states have internal predecessors, (29890), 12901 states have call successors, (12901), 2013 states have call predecessors, (12901), 1997 states have return successors, (13124), 12232 states have call predecessors, (13124), 12901 states have call successors, (13124) [2022-11-22 01:19:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37093 states to 37093 states and 55915 transitions. [2022-11-22 01:19:26,512 INFO L78 Accepts]: Start accepts. Automaton has 37093 states and 55915 transitions. Word has length 272 [2022-11-22 01:19:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:26,513 INFO L495 AbstractCegarLoop]: Abstraction has 37093 states and 55915 transitions. [2022-11-22 01:19:26,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 01:19:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 37093 states and 55915 transitions. [2022-11-22 01:19:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-22 01:19:26,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:26,605 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:26,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:19:26,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1555931917, now seen corresponding path program 1 times [2022-11-22 01:19:26,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:26,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070619875] [2022-11-22 01:19:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-22 01:19:27,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:27,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070619875] [2022-11-22 01:19:27,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070619875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:27,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:27,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:27,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800859919] [2022-11-22 01:19:27,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:27,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:27,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:27,198 INFO L87 Difference]: Start difference. First operand 37093 states and 55915 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:19:35,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:36,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:36,884 INFO L93 Difference]: Finished difference Result 107468 states and 161953 transitions. [2022-11-22 01:19:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:36,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 275 [2022-11-22 01:19:36,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:37,317 INFO L225 Difference]: With dead ends: 107468 [2022-11-22 01:19:37,318 INFO L226 Difference]: Without dead ends: 70402 [2022-11-22 01:19:37,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:37,439 INFO L413 NwaCegarLoop]: 4353 mSDtfsCounter, 3567 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:37,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 7801 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 01:19:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70402 states. [2022-11-22 01:19:41,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70402 to 70377. [2022-11-22 01:19:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70377 states, 42089 states have (on average 1.3448882130722992) internal successors, (56605), 44645 states have internal predecessors, (56605), 24472 states have call successors, (24472), 3846 states have call predecessors, (24472), 3815 states have return successors, (24869), 23179 states have call predecessors, (24869), 24472 states have call successors, (24869) [2022-11-22 01:19:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70377 states to 70377 states and 105946 transitions. [2022-11-22 01:19:41,980 INFO L78 Accepts]: Start accepts. Automaton has 70377 states and 105946 transitions. Word has length 275 [2022-11-22 01:19:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:41,996 INFO L495 AbstractCegarLoop]: Abstraction has 70377 states and 105946 transitions. [2022-11-22 01:19:41,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:19:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 70377 states and 105946 transitions. [2022-11-22 01:19:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-22 01:19:42,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:42,093 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:42,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:19:42,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:42,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1471782069, now seen corresponding path program 1 times [2022-11-22 01:19:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:42,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186924307] [2022-11-22 01:19:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:42,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-22 01:19:42,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:42,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186924307] [2022-11-22 01:19:42,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186924307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:42,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:42,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:42,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977803976] [2022-11-22 01:19:42,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:42,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:42,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:42,655 INFO L87 Difference]: Start difference. First operand 70377 states and 105946 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:19:53,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:54,343 INFO L93 Difference]: Finished difference Result 207008 states and 311568 transitions. [2022-11-22 01:19:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:54,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 276 [2022-11-22 01:19:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:55,296 INFO L225 Difference]: With dead ends: 207008 [2022-11-22 01:19:55,296 INFO L226 Difference]: Without dead ends: 136658 [2022-11-22 01:19:55,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:55,615 INFO L413 NwaCegarLoop]: 4366 mSDtfsCounter, 3566 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 7814 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:55,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 7814 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 01:19:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136658 states.